Παραπομπή APA

Thalmann,hans E. (1960). An index to the genera and species of the foraminifera. George vanderbilt foundation.

Παραπομπή Chicago Style

Thalmann,hans E. An Index to the Genera and Species of the Foraminifera. California: George vanderbilt foundation, 1960.

Παραπομπή MLA

Thalmann,hans E. An Index to the Genera and Species of the Foraminifera. George vanderbilt foundation, 1960.