Lua APA (7ú heag.)

TAYLOR WELDEN J. (1975). MARKETING (3RD.). SOUTH-WESTERN COLLEGE PUBLISHING CO.

Lua i Stíl Chicago (17ú heag.)

TAYLOR WELDEN J. MARKETING. 3RD. NEW YORK: SOUTH-WESTERN COLLEGE PUBLISHING CO, 1975.

Lua MLA (9ú heag.)

TAYLOR WELDEN J. MARKETING. 3RD. SOUTH-WESTERN COLLEGE PUBLISHING CO, 1975.

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