APA-čujuhus (7. p.)
Ray, S. F. (1977). The lens in and all its jobs. Hastings house.
Chicago-čujuhus (17. p.)
Ray, Sidney F. The Lens in and All Its Jobs. New York: Hastings house, 1977.
MLA-čujuhus (9. p.)
Ray, Sidney F. The Lens in and All Its Jobs. Hastings house, 1977.
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