Tohutoro APA (7th ed.)
Willam, H. A. (1967). Carl Zeiss. 1816-1888. Bruckmann.
Tohutoru Kātū Chicago (17th ed.)
Willam, Horst Alexander. Carl Zeiss. 1816-1888. München: Bruckmann, 1967.
Tohutoro MLA (9th ed.)
Willam, Horst Alexander. Carl Zeiss. 1816-1888. Bruckmann, 1967.
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