Kors, Erika books & textbook

How Did We Find Out About Lasers?

Isaac Asimov Erika Kors

Walker & Co /1990T Hardcover / 64 Pages
isbn-10: 0802769357 / isbn-13: 9780802769350

Two Orphan Cubs

Barbara Brenner May Garelick Erika Kors

Trumpet Club /1990T Paperback
isbn-10: 0440842557 / isbn-13: 9780440842552

Ceb's Amazing Tail (Modern Curriculum Press Beginning to Read Series)

Collins, David R. Kors, Erika W.

Modern Curriculum Pr /1987-12-12 Hardcover / 31 Pages
isbn-10: 0813651859 / isbn-13: 9780813651859

How Did We Find Out About the Brain? (How Did We Find Out Series)

Asimov, Isaac Kors, Erika W.

Walker & Co /1987-12-01 Library Binding / 61 Pages
isbn-10: 0802767370 / isbn-13: 9780802767370

How Did We Find Out About Photosynthesis? (How Did We Find Out Series)

Asimov, Isaac Kors, Erika W.

Walker & Co /1989T Hardcover / 64 Pages
isbn-10: 0802768997 / isbn-13: 9780802768995

How Did We Find Out About Superconductivity (How Did We Find Out Series)

Asimov, Isaac Kors, Erika

Walker & Co /1988T Hardcover / 64 Pages
isbn-10: 0802767761 / isbn-13: 9780802767769

How Did We Find Out About Microwaves (How Did We Find Out Series)

Asimov, Isaac Kors, Erika W.

Walker & Co /1989T Hardcover / 63 Pages
isbn-10: 0802768377 / isbn-13: 9780802768377

How Did We Find Out About Neptune (How Did We Find Out Series)

Asimov, Isaac Kors, Erika

Walker & Co /1990T Hardcover / 59 Pages
isbn-10: 0802769810 / isbn-13: 9780802769817