APA

Wray G. A., Levinton J. S. & Shapiro L. H.Molecular evidence for deep precambrian divergences among metazoan phyla. : .

Chicago

Wray Gregory A, Levinton Jeffrey S and Shapiro Leo H.Molecular evidence for deep precambrian divergences among metazoan phyla. : .

Harvard

Wray G. A., Levinton J. S. and Shapiro L. H.Molecular evidence for deep precambrian divergences among metazoan phyla. : .

MLA

Wray Gregory A, Levinton Jeffrey S and Shapiro Leo H.: . .