Cita APA (7a ed.)

Knowles, D. (1973). Alternative programs: A grapevine survey. NCCD Research Center.

Cita Chicago Style (17a ed.)

Knowles, Duce. Alternative Programs: A Grapevine Survey. Davis, Cal: NCCD Research Center, 1973.

Cita MLA (9a ed.)

Knowles, Duce. Alternative Programs: A Grapevine Survey. NCCD Research Center, 1973.