Cita APA (7a ed.)

Kahmen, H., & Faig, W. (1988). Surveying. de Gruyter.

Cita Chicago Style (17a ed.)

Kahmen, Heribert, y Wolfgang Faig. Surveying. Berlín: de Gruyter, 1988.

Cita MLA (9a ed.)

Kahmen, Heribert, y Wolfgang Faig. Surveying. de Gruyter, 1988.