APA (7th ed.) Citation

Childs, W. H. J. (1972). Physical constants selected for students (9th ed.). Chapman and Hall.

Chicago Style (17th ed.) Citation

Childs, W. H. J. Physical Constants Selected for Students. 9th ed. London: Chapman and Hall, 1972.

MLA (9th ed.) Citation

Childs, W. H. J. Physical Constants Selected for Students. 9th ed. Chapman and Hall, 1972.