Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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