Gaya APA

Mahmud, A, B, Z, A. (1982). al Umara' al musallatun / Abdullah bin Zayd Ali Mahmud . : Dar al Shuruq.

Gaya MLA

Mahmud, Abdullah, Bin, Zayd, Ali. "al Umara' al musallatun / Abdullah bin Zayd Ali Mahmud". : Dar al Shuruq, 1982. Referensi.