APA (7e ed.) Bronvermelding

Não informado. (1949). Geophysical research papers. Air Force Cambridge, Geophysics Research Directorate.

Chicago (17e ed.) Bronvermelding

Não informado. Geophysical Research Papers. Cambridge, Mass: Air Force Cambridge, Geophysics Research Directorate, 1949.

MLA (8e ed.) Bronvermelding

Não informado. Geophysical Research Papers. Air Force Cambridge, Geophysics Research Directorate, 1949.

Let op: Deze citaties zijn niet altijd 100% accuraat.