APA (7th ed.) Citation

Lovell, B. (1967). Our present knowledge of the universe. Harvard University Press.

Chicago Style (17th ed.) Citation

Lovell, Bernard. Our Present Knowledge of the Universe. Cambridge: Harvard University Press, 1967.

MLA (9th ed.) Citation

Lovell, Bernard. Our Present Knowledge of the Universe. Harvard University Press, 1967.

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