Dyfyniad APA

Childs, W. H. J. (1958). Physical constants: Selected for students ([8th ed., rev.].). Methuen.

Dyfyniad Arddull Chicago

Childs, W. H. J. Physical Constants: Selected for Students. [8th ed., rev.]. London: Methuen, 1958.

Dyfyniad MLA

Childs, W. H. J. Physical Constants: Selected for Students. [8th ed., rev.]. Methuen, 1958.

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