Book of parts : Monotype keyboards : standard and duplex patterns.

MLA

Book of Parts : Monotype Keyboards : Standard and Duplex Patterns. London: Monotype Corporation, 1960.

APA

(1960). Book of parts : Monotype keyboards : standard and duplex patterns. London: Monotype Corporation.

Chicago

Book of Parts : Monotype Keyboards : Standard and Duplex Patterns. London: Monotype Corporation, 1960.