APA-Zitierstil (7. Ausg.)

Carvalho, M. d. G. P. d. (1997). Devonian calmonid trilobites from the Parnaíba Basin, Pianí State, Brazil.

Chicago-Zitierstil (17. Ausg.)

Carvalho, Maria da Gloria Pires de. Devonian Calmonid Trilobites from the Parnaíba Basin, Pianí State, Brazil. New York, NY, 1997.

MLA-Zitierstil (9. Ausg.)

Carvalho, Maria da Gloria Pires de. Devonian Calmonid Trilobites from the Parnaíba Basin, Pianí State, Brazil. 1997.