APA (7th ed.) Citation

Edward, J., Ruskin, N., & Turrini, P. (1981). Separation-individuation: Theory and application. Gardner Press.

Chicago Style (17th ed.) Citation

Edward, Joyce, Nathene Ruskin, and Patsy Turrini. Separation-individuation: Theory and Application. New York: Gardner Press, 1981.

MLA (9th ed.) Citation

Edward, Joyce, et al. Separation-individuation: Theory and Application. Gardner Press, 1981.