Cytowanie według stylu APA (wyd. 7)

American University (Washington, D.C.). Foreign Area Studies, & Nyrop, R. F. (1986). The Yemens: Country studies (2nd ed.). American University, Foreign Area Studies : For sale by the Supt. of Docs., U.S. G.P.O..

Cytowanie według stylu Chicago (wyd. 17)

American University (Washington, D.C.). Foreign Area Studies, i Richard F. Nyrop. The Yemens: Country Studies. 2nd ed. Washington, D.C.: American University, Foreign Area Studies : For sale by the Supt. of Docs., U.S. G.P.O., 1986.

Cytowanie według stylu MLA (wyd. 8)

American University (Washington, D.C.). Foreign Area Studies, i Richard F. Nyrop. The Yemens: Country Studies. 2nd ed. American University, Foreign Area Studies : For sale by the Supt. of Docs., U.S. G.P.O., 1986.