Παραπομπή APA

Hills, E. S. (1965). Elements of structural geology. Asia publishing House.

Παραπομπή Chicago Style

Hills, E Sheron. Elements of Structural Geology. Bombay: Asia publishing House, 1965.

Παραπομπή MLA

Hills, E Sheron. Elements of Structural Geology. Asia publishing House, 1965.