Παραπομπή APA

O'Brien, L. J. (1962). Canadian cartography: Proceedings of the symposium on cartography. Ottawa: Canadian Institute of Surveying.

Παραπομπή Chicago Style

O'Brien, L. J. Canadian Cartography: Proceedings of the Symposium On Cartography. Ottawa: Canadian Institute of Surveying, 1962.

Παραπομπή MLA

O'Brien, L. J. Canadian Cartography: Proceedings of the Symposium On Cartography. Ottawa: Canadian Institute of Surveying, 1962.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.