Roberts, T. R. (1991). Systematic revision of the Asian catfish family Pangasiidae with biological observations and decriptions of three new species. U.S.A: Proceedings f the Academy of Nature Science of Philadelphia.
استشهاد بنمط شيكاغوRoberts, Tyson R. Systematic Revision of the Asian Catfish Family Pangasiidae With Biological Observations and Decriptions of Three New Species. U.S.A: Proceedings f the Academy of Nature Science of Philadelphia, 1991.
MLA استشهادRoberts, Tyson R. Systematic Revision of the Asian Catfish Family Pangasiidae With Biological Observations and Decriptions of Three New Species. U.S.A: Proceedings f the Academy of Nature Science of Philadelphia, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.