1.
2.
Scientific Development and Misconceptions Through the Ages A Reference Guide
by Krebs, Robert E.
ISBN: 9780313302268
List Price: $63.95
3.
Groundbreaking Scientific Experiments, Inventions, and Discoveries of the Middle Ages and th...
by Krebs, Robert E.
ISBN: 9780313324338
List Price: $67.95
4.
Groundbreaking Scientific Experiments, Inventions, and Discoveries of the Ancient World
by Krebs, Robert E., Krebs, Ca...
ISBN: 9780313313424
List Price: $72.95
5.
Scientific Laws, Principles, and Theories: A Reference Guide
by Robert E. Krebs
ISBN: 9780313309571
List Price: $91.95
6.
7.
8.
Encyclopedia of Scientific Principles, Laws, and Theories
by Krebs, Robert E., Dejur, Rae
ISBN: 9780313340055
9.
History And Use of Our Earth's Chemical Elements A Reference Guide
by Krebs, Robert E., Dejur, Rae
ISBN: 9780313334382
List Price: $75.00
10.
History and Use of Our Earth's Chemical Elements A Reference Guide
by Krebs, Robert E.
ISBN: 9780313301230
List Price: $49.95