APA (7th ed.) Citation

SAIDY & LESSING. (1974). The World of chess. Ridge Press.

Chicago Style (17th ed.) Citation

SAIDY and LESSING. The World of Chess. London: Ridge Press, 1974.

MLA (8th ed.) Citation

SAIDY and LESSING. The World of Chess. Ridge Press, 1974.

Warning: These citations may not always be 100% accurate.