Gaya APA

Lehmann, D, R., Winer, R, S. (1988). Analisis for marketing planning . United States of Amerika: BPI IRI.

Gaya MLA

Lehmann, Donald, R.., Winer, Russell, S.. "Analisis for marketing planning". United States of Amerika: BPI IRI, 1988. Manajemen Administrasi D3.