APA aipamena

Koestler, A. (1973). Heel of Achilles, Essays [1968-1973]. Hutchinson Univ. lib..

Chicago Style aipamena

Koestler, Arthur. Heel of Achilles, Essays [1968-1973]. London: Hutchinson Univ. lib., 1973.

MLA aipamena

Koestler, Arthur. Heel of Achilles, Essays [1968-1973]. Hutchinson Univ. lib., 1973.