Cita APA (7a ed.)

Van Houtven, C. H., & Norton, E. C. (2004). Informal care and health use of older adults. [s.n.].

Cita Chicago Style (17a ed.)

Van Houtven, Courtney Harold, y Edward C. Norton. Informal Care and Health Use of Older Adults. [S.l.]: [s.n.], 2004.

Cita MLA (9a ed.)

Van Houtven, Courtney Harold, y Edward C. Norton. Informal Care and Health Use of Older Adults. [s.n.], 2004.