APA استشهاد

Cushman,joseph a. (1921). Foraminifera of the Philippine and Adjacent Seas. Government Printing Office.

استشهاد بنمط شيكاغو

Cushman,joseph a. Foraminifera of the Philippine and Adjacent Seas. Washington: Government Printing Office, 1921.

MLA استشهاد

Cushman,joseph a. Foraminifera of the Philippine and Adjacent Seas. Government Printing Office, 1921.