APA (7th ed.) Citation

Tracy, G. R., Tropp, H. E., & Friedl, A. E. (1970). Modern physical science. Holt, Rinehart & Winston.

Chicago Style (17th ed.) Citation

Tracy, George R., Harry E. Tropp, and Alfred E. Friedl. Modern Physical Science. New York: Holt, Rinehart & Winston, 1970.

MLA (9th ed.) Citation

Tracy, George R., et al. Modern Physical Science. Holt, Rinehart & Winston, 1970.

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