APA (7th ed.) Citation

Obourn, E. S. (1963). Teacher's guide for discovering the world of science. Van Nostrand.

Chicago Style (17th ed.) Citation

Obourn, Ellsworth Scott. Teacher's Guide for Discovering the World of Science. Princeton: Van Nostrand, 1963.

MLA (9th ed.) Citation

Obourn, Ellsworth Scott. Teacher's Guide for Discovering the World of Science. Van Nostrand, 1963.

Warning: These citations may not always be 100% accurate.