APA-viite (7. p.)

INGRAM THOMAS N. (2013). SALES MANAGEMENT: ANALYSIS AND DECISION MAKING 8/E. Issued.

Chicago-viite (17. p.)

INGRAM THOMAS N. SALES MANAGEMENT: ANALYSIS AND DECISION MAKING 8/E. NEW DELHI: Issued, 2013.

MLA-viite (9. p.)

INGRAM THOMAS N. SALES MANAGEMENT: ANALYSIS AND DECISION MAKING 8/E. Issued, 2013.