Gaya APA

Woelfel, C, J., Mecimore, C, D. (1986). The operating executive's guide to profit planning tools and techniques . Illionis: Probus Pub.Co.

Gaya MLA

Woelfel, Charles, J., Mecimore, Charles, D. "The operating executive's guide to profit planning tools and techniques". Illionis: Probus Pub.Co, 1986. Text.