Dyfyniad APA

Sumich, J. L. (1999). A introduction to the biology of marine life. Boston, MA: McGraw-Hill.

Dyfyniad Arddull Chicago

Sumich, James L. A Introduction to the Biology of Marine Life. Boston, MA: McGraw-Hill, 1999.

Dyfyniad MLA

Sumich, James L. A Introduction to the Biology of Marine Life. Boston, MA: McGraw-Hill, 1999.

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