Piper, R. G. (1982). Fish hatchery management. Washington, D.C: U.S. Department of the Interior, Fish and Wildlife Service.
استشهاد بنمط شيكاغوPiper, Robert G. Fish Hatchery Management. Washington, D.C: U.S. Department of the Interior, Fish and Wildlife Service, 1982.
MLA استشهادPiper, Robert G. Fish Hatchery Management. Washington, D.C: U.S. Department of the Interior, Fish and Wildlife Service, 1982.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.