Dyfyniad APA

Boonstra, L. D. (1930). A contribution to the cranial osteology of Pareiasaurus serridens (Owen). Nasionale Pers, Beperk.

Dyfyniad Arddull Chicago

Boonstra, Lieuwe D. A Contribution to the Cranial Osteology of Pareiasaurus Serridens (Owen). Capetown: Nasionale Pers, Beperk, 1930.

Dyfyniad MLA

Boonstra, Lieuwe D. A Contribution to the Cranial Osteology of Pareiasaurus Serridens (Owen). Nasionale Pers, Beperk, 1930.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.