Citace podle APA (7th ed.)

(1989). The source of today's thirty-five millimeter photography: The contribution made by the Leica-camera to the early development of thirty-five millimeter photography / by Emil G. Keller.

Citace podle Chicago (17th ed.)

The Source of Today's Thirty-five Millimeter Photography: The Contribution Made by the Leica-camera to the Early Development of Thirty-five Millimeter Photography / by Emil G. Keller. 1989.

Citace podle MLA (9th ed.)

The Source of Today's Thirty-five Millimeter Photography: The Contribution Made by the Leica-camera to the Early Development of Thirty-five Millimeter Photography / by Emil G. Keller. 1989.

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