Cita APA (7a ed.)

Groves, L. (1994). Principles of international marketing research. [s.n].

Cita Chicago Style (17a ed.)

Groves, Len. Principles of International Marketing Research. Blackwell Oxford: [s.n], 1994.

Cita MLA (9a ed.)

Groves, Len. Principles of International Marketing Research. [s.n], 1994.