APA (7th ed.) Citation

Ballinger, L. B., & Ballinger, R. A. (1972). Sign, symbol and form. Van Nostrand Reinhold.

Chicago Style (17th ed.) Citation

Ballinger, Louise Bowen, and Raymond A. Ballinger. Sign, Symbol and Form. New York: Van Nostrand Reinhold, 1972.

MLA (9th ed.) Citation

Ballinger, Louise Bowen, and Raymond A. Ballinger. Sign, Symbol and Form. Van Nostrand Reinhold, 1972.