Cita APA (7a ed.)

Roelofs, R. (1950). Astronomy applied to land surveying. N.V.Uitgeverij Argus.

Cita Chicago Style (17a ed.)

Roelofs, R. Astronomy Applied to Land Surveying. Amsterdam: N.V.Uitgeverij Argus, 1950.

Cita MLA (9a ed.)

Roelofs, R. Astronomy Applied to Land Surveying. N.V.Uitgeverij Argus, 1950.