Cita APA (7th ed.)

MALTZ MAXWELL. (1998). ZERO - RESISTANCE SELLING. NEW PRENTICE HALL.

Cita Chicago (17th ed.)

MALTZ MAXWELL. ZERO - RESISTANCE SELLING. NEW JERSEY: NEW PRENTICE HALL, 1998.

Cita MLA (9th ed.)

MALTZ MAXWELL. ZERO - RESISTANCE SELLING. NEW PRENTICE HALL, 1998.