Style de citation APA (7e éd.)

Beyer, H. O. (1961). Philippine tektites: A contribution to the study of the tektite problem in general, in the light of both past and recent discoveries. [Office of Research Coordination, University of the Philippines].

Style de citation Chicago (17e éd.)

Beyer, Henry Otley. Philippine Tektites: A Contribution to the Study of the Tektite Problem in General, in the Light of Both Past and Recent Discoveries. Quezon City: [Office of Research Coordination, University of the Philippines], 1961.

Style de citation MLA (9e éd.)

Beyer, Henry Otley. Philippine Tektites: A Contribution to the Study of the Tektite Problem in General, in the Light of Both Past and Recent Discoveries. [Office of Research Coordination, University of the Philippines], 1961.