Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Houlder, E. (1987). Recording a level or nearly level horizon by photoplanning without specialist equipment.

Chicago Citation Edition Citation

Houlder, E. Recording a Level or Nearly Level Horizon by Photoplanning Without Specialist Equipment. 1987.

MLA Citation Edition Citation

Houlder, E. Recording a Level or Nearly Level Horizon by Photoplanning Without Specialist Equipment. 1987.