Lua APA (7ú heag.)

STAPLETON JOHN. (1982). HOW TO PREPARE A MARKETING PLAN (3RD.). GOWER.

Lua i Stíl Chicago (17ú heag.)

STAPLETON JOHN. HOW TO PREPARE A MARKETING PLAN. 3RD. GREAT BRITAIN: GOWER, 1982.

Lua MLA (9ú heag.)

STAPLETON JOHN. HOW TO PREPARE A MARKETING PLAN. 3RD. GOWER, 1982.

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