Cita APA (7a ed.)

Werner, O., & Schoepfle, G. M. (1987). Systematic fieldwork. Sage.

Cita Chicago Style (17a ed.)

Werner, Oswald, y G. M. Schoepfle. Systematic Fieldwork. Newbury Park [u.a.]: Sage, 1987.

Cita MLA (8a ed.)

Werner, Oswald, y G. M. Schoepfle. Systematic Fieldwork. Sage, 1987.