Παραπομπή APA

Tatsch, J. H. (1974). Petroleum deposits: Evolution and present characteristics.

Παραπομπή Chicago Style

Tatsch, J H. Petroleum Deposits: Evolution and Present Characteristics. Massachuset, 1974.

Παραπομπή MLA

Tatsch, J H. Petroleum Deposits: Evolution and Present Characteristics. 1974.