Παραπομπή APA

Jacobson, W. J., & Lauby, C. J. K. (1968). Thinking ahead in science. American book company.

Παραπομπή Chicago Style

Jacobson, Willard J., και Cecelia J Konicek Lauby. Thinking Ahead in Science. New York: American book company, 1968.

Παραπομπή MLA

Jacobson, Willard J., και Cecelia J Konicek Lauby. Thinking Ahead in Science. American book company, 1968.