Παραπομπή APA

Blyth, F. G. H. (1960). Geology for engineers (4th ed.). English language book society.

Παραπομπή Chicago Style

Blyth, F. G. H. Geology for Engineers. 4th ed. London: English language book society, 1960.

Παραπομπή MLA

Blyth, F. G. H. Geology for Engineers. 4th ed. English language book society, 1960.