APA (7th ed.) Citation

Brock, G. C. (1970). Image evaluation for aerial photography: An appraisal of current techniques. Focal Press.

Chicago Style (17th ed.) Citation

Brock, G. C. Image Evaluation for Aerial Photography: An Appraisal of Current Techniques. London: Focal Press, 1970.

MLA (9th ed.) Citation

Brock, G. C. Image Evaluation for Aerial Photography: An Appraisal of Current Techniques. Focal Press, 1970.