Lua APA (7ú heag.)

STOKES THOMAS F. (1980). TRAINING AND DEVELOPING THE PROFESSIONAL SALESMAN. TARAPOREVALA PUBLICATIONS.

Lua i Stíl Chicago (17ú heag.)

STOKES THOMAS F. TRAINING AND DEVELOPING THE PROFESSIONAL SALESMAN. BOMBAY: TARAPOREVALA PUBLICATIONS, 1980.

Lua MLA (9ú heag.)

STOKES THOMAS F. TRAINING AND DEVELOPING THE PROFESSIONAL SALESMAN. TARAPOREVALA PUBLICATIONS, 1980.

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