APA Edition Citation

Obourn, E. S. E. (1963). Discovering the world of science.

Chicago Edition Citation

Obourn, Ellsworth S. Etc. Discovering the World of Science. 1963.

MLA Edition Citation

Obourn, Ellsworth S. Etc. Discovering the World of Science. 1963.

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