APA

Krock A, . (1968). Memoirs: Sixty Years on the Firing Line. N.Y: Funk & Wagnalls.

Chicago

Krock A, . 1968. Memoirs: Sixty Years on the Firing Line. N.Y: Funk & Wagnalls.

Harvard

Krock A, . (1968). Memoirs: Sixty Years on the Firing Line. N.Y: Funk & Wagnalls.

MLA

Krock A, . Memoirs: Sixty Years on the Firing Line. N.Y: Funk & Wagnalls. 1968.