Gaya APA

HUMPHREY, W, 4. (1985). Hostages to fortune . London : Secker & Warburg, 1985: Secker & Warburg.

Gaya MLA

HUMPHREY, William, 4. "Hostages to fortune". London : Secker & Warburg, 1985: Secker & Warburg, 1985. Buku.