APA (7th ed.) Citation

Firth, D. C., & Lyon, K. W. (1971). Introductory physical science. Univ. Pr.

Chicago Style (17th ed.) Citation

Firth, David C., and Kenneth W. Lyon. Introductory Physical Science. Cambridge: Univ. Pr, 1971.

MLA (9th ed.) Citation

Firth, David C., and Kenneth W. Lyon. Introductory Physical Science. Univ. Pr, 1971.

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