APA
Guillao N. &. F. W., . (2015). Principles of marketing : a simplified approach for students. Philippines: St. Andrew Publishing House.
Chicago
Guillao Nolan & Fernandez-Cabading Wendy, . 2015. Principles of marketing : a simplified approach for students. Philippines: St. Andrew Publishing House.
Harvard
Guillao N. &. F. W., . (2015). Principles of marketing : a simplified approach for students. Philippines: St. Andrew Publishing House.
MLA
Guillao Nolan & Fernandez-Cabading Wendy, . Principles of marketing : a simplified approach for students. Philippines: St. Andrew Publishing House. 2015.