APA (7th ed.) Citation

Feil, N., & Klerk-Rubin, V. d. (1992). V/F Validation: The feil method. How to help disoriented old-old. Edward Feil.

Chicago Style (17th ed.) Citation

Feil, Naomi, and Vicki de Klerk-Rubin. V/F Validation: The Feil Method. How to Help Disoriented Old-old. [Cleveland: Edward Feil, 1992.

MLA (9th ed.) Citation

Feil, Naomi, and Vicki de Klerk-Rubin. V/F Validation: The Feil Method. How to Help Disoriented Old-old. Edward Feil, 1992.