APA Style

Drucker, Peter F. 1909. (1967). The effective executive / Peter F. Drucker. . United Kingdom: Heinemann.

Chicago Style

Drucker, Peter F. 1909. The effective executive / Peter F. Drucker.. United Kingdom: Heinemann, 1967. Text.

MLA Style

Drucker, Peter F. 1909. The effective executive / Peter F. Drucker.. United Kingdom: Heinemann, 1967. Text.

Turabian Style

Drucker, Peter F. 1909. The effective executive / Peter F. Drucker.. United Kingdom: Heinemann, 1967. Print.