APA (7 ম সংস্করণ) উদ্ধৃতি

Navarrete, N. R. (1977). The automorphism group of torsionfree abelian groups of rank two [microform]. Photoduplication Service, University of the Philippines Library.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Navarrete, Norberto R. The Automorphism Group of Torsionfree Abelian Groups of Rank Two [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Navarrete, Norberto R. The Automorphism Group of Torsionfree Abelian Groups of Rank Two [microform]. Photoduplication Service, University of the Philippines Library, 1977.