Παραπομπή APA

Cheronis, N. D., Parsons, J. B., & Ronneberg, C. E. (1958). The study of the physical world (3rd ed.). [Boston]: Houghton Mifflin Company.

Παραπομπή Chicago Style

Cheronis, Nicholas D., James B. Parsons, and Conrad E. Ronneberg. The Study of the Physical World. 3rd ed. [Boston]: Houghton Mifflin Company, 1958.

Παραπομπή MLA

Cheronis, Nicholas D., James B. Parsons, and Conrad E. Ronneberg. The Study of the Physical World. 3rd ed. [Boston]: Houghton Mifflin Company, 1958.

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