Dyfyniad APA

Hesselbo, S. (1988). TRACE FOSSILS OF CAMBRIAN AGLASPIDID ARTHROPODS.

Dyfyniad Arddull Chicago

Hesselbo, S. TRACE FOSSILS OF CAMBRIAN AGLASPIDID ARTHROPODS. 1988.

Dyfyniad MLA

Hesselbo, S. TRACE FOSSILS OF CAMBRIAN AGLASPIDID ARTHROPODS. 1988.

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