Keppler, H. (1967). The Asahi Pentax way: The Asahi Pentax photographer's companion (2. edition.). Focal Press.
Chicago Style (17th ed.) CitationKeppler, Herbert. The Asahi Pentax Way: The Asahi Pentax Photographer's Companion. 2. edition. London: Focal Press, 1967.
MLA (9th ed.) CitationKeppler, Herbert. The Asahi Pentax Way: The Asahi Pentax Photographer's Companion. 2. edition. Focal Press, 1967.
Warning: These citations may not always be 100% accurate.