APA (7a ed.)

Weissberger, A., Valenta, Z., Belleau, B., Bentley, K. W., Jones, J. K. N., De Mayo, P., Mclean, S., Perry, M. B., Polgar, N., Potts, K. T., Spencer, E. y., Valenta, Z., & Weedon, B. C. L. (1963). Elucidation of structures by physical and chemical methods. Technique of Organic Chemistry.