APA استشهاد

Whitaker, J. K. (1975). Early economic writings of Alfred Marshall, 1867-1890.

استشهاد بنمط شيكاغو

Whitaker, J K. Early Economic Writings of Alfred Marshall, 1867-1890. Macmillan Press Limited, Bombay, 1975.

MLA استشهاد

Whitaker, J K. Early Economic Writings of Alfred Marshall, 1867-1890. 1975.