51.
Harnessing the Sun: The Story of Solar Energy - David C. Knight - Library Binding
by Knight, David C.
ISBN: 9780688320706
List Price: $12.88
52.
Viruses: Life's Smallest Enemies - David C. Knight - Hardcover
by Knight, David C.
ISBN: 9780688007126
List Price: $11.95
OUT OF STOCK
See Availability on Amazon53.
Viruses: Life's Smallest Enemies - David C. Knight - Library Binding
by Knight, David C.
ISBN: 9780688007133
List Price: $11.88
OUT OF STOCK
See Availability on Amazon54.
Robotics: Past, Present and Future - David C. Knight - Hardcover
by Knight, David C.
ISBN: 9780688014902
List Price: $11.95
55.
Spy Who Never Was and Other True Spy Stories
by Knight, David C.
ISBN: 9780385131087
List Price: $6.95
OUT OF STOCK
See Availability on Amazon57.
Thirty-Two Moons: Natural Satellites of Solar System
by Knight, David C.
ISBN: 9780688301101
List Price: $6.48
58.
Those Mysterious UFO's: The Story of Unidentified Flying Objects - David C. Knight - Library...
by Knight, David C.
ISBN: 9780894900327
List Price: $10.95
OUT OF STOCK
See Availability on Amazon59.
All about Sound - David C. Knight - Library Binding
by Knight, David C., Johnson, ...
ISBN: 9780893758783
List Price: $10.59
60.
Vasco Da GAMA - David C. Knight - Library Binding
by Knight, David
ISBN: 9780893751753
List Price: $10.59
61.
62.
Let's Find out about Weather
by Knight, David C., Martin, Rene
ISBN: 9780531000533
List Price: $4.47
OUT OF STOCK
See Availability on Amazon64.
Those Mysterious UFO's: The Story of Unidentified Flying Objects
by Knight, David C.
ISBN: 9780394620275
List Price: $3.95
65.
66.
Robert Koch: Father of Bacteriology (Immortals of Science Series)
by David C. Knight
ISBN: 9780531008911
67.
Colonies in Orbit: The Coming Age of Human Settlements in Space
by Knight, David C.
ISBN: 9780688320966
List Price: $12.88
68.
Poltergeists: Hauntings and the Haunted
by Knight, David C., Kubinyi, ...
ISBN: 9780397314164
List Price: $1.95
OUT OF STOCK
See Availability on Amazon73.
Poltergeists: Hauntings and the Haunted
by Knight, David C., Kubinyi, ...
ISBN: 9780397314881
List Price: $7.95
75.
Eavesdropping on Space: The Quest of Radio Astronomy
by Knight, David C.
ISBN: 9780688320195
List Price: $8.59