APA (7th ed.) Citation

Batjes, D. A. J. (1958). Foraminifera of the oligocene of Belgium. Inst. Royale des Sciences Naturelles de Belgique.

Chicago Style (17th ed.) Citation

Batjes, Derk Anders Johan. Foraminifera of the Oligocene of Belgium. Bruxelles: Inst. Royale des Sciences Naturelles de Belgique, 1958.

MLA (9th ed.) Citation

Batjes, Derk Anders Johan. Foraminifera of the Oligocene of Belgium. Inst. Royale des Sciences Naturelles de Belgique, 1958.