APA (7th ed.) Citation

Roelofs, R. (1950). Astronomy applied to land surveying. Wed. J. Ahrend.

Chicago Style (17th ed.) Citation

Roelofs, R. Astronomy Applied to Land Surveying. Amsterdam: Wed. J. Ahrend, 1950.

MLA (9th ed.) Citation

Roelofs, R. Astronomy Applied to Land Surveying. Wed. J. Ahrend, 1950.

Warning: These citations may not always be 100% accurate.