APA Style

Sower, V, E., Sower, C, H. (2011). Better Business Decisions Using Cost Modeling For Procurement, Operations, and Supply Chain Profesionals . Singapura: Business Expert Press,LLC.

MLA Style

Sower, Victor, E.., Sower, Christopher, H.. "Better Business Decisions Using Cost Modeling For Procurement, Operations, and Supply Chain Profesionals". Singapura: Business Expert Press,LLC, 2011. Text.