Cita APA

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

Citación estilo Chicago

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

Cita MLA

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