Nichol 1995, p. 87. Nichol, James (1995). "2. Azerbaijan". In Curtis, Glenn E. (ed.). Armenia, Azerbaijan, and Georgia: County Studies. Area Handbook Series (first ed.). Washington, D.C.: US Government Printing Office. pp. 79–148. ISBN978-0-7881-2813-4.
Pappas 1994, p. 27. Pappas, Nicholas C. J. (1994). "Albanian". In Olson, James S.; Pappas, Lee Brigance; Pappas, Nicholas C. J. (eds.). An Ethnohistorical Dictionary of the Russian and Soviet Empires. Westport, Conn.: Greenwood Press. pp. 27–29. ISBN978-0-313-27497-8.
Nichol 1995, p. 88. Nichol, James (1995). "2. Azerbaijan". In Curtis, Glenn E. (ed.). Armenia, Azerbaijan, and Georgia: County Studies. Area Handbook Series (first ed.). Washington, D.C.: US Government Printing Office. pp. 79–148. ISBN978-0-7881-2813-4.
Pappas 1994, p. 28. Pappas, Nicholas C. J. (1994). "Albanian". In Olson, James S.; Pappas, Lee Brigance; Pappas, Nicholas C. J. (eds.). An Ethnohistorical Dictionary of the Russian and Soviet Empires. Westport, Conn.: Greenwood Press. pp. 27–29. ISBN978-0-313-27497-8.
Nichol 1995, p. 89. Nichol, James (1995). "2. Azerbaijan". In Curtis, Glenn E. (ed.). Armenia, Azerbaijan, and Georgia: County Studies. Area Handbook Series (first ed.). Washington, D.C.: US Government Printing Office. pp. 79–148. ISBN978-0-7881-2813-4.
Nichol 1995, p. 91. Nichol, James (1995). "2. Azerbaijan". In Curtis, Glenn E. (ed.). Armenia, Azerbaijan, and Georgia: County Studies. Area Handbook Series (first ed.). Washington, D.C.: US Government Printing Office. pp. 79–148. ISBN978-0-7881-2813-4.