APA
Garrovillas E. P., . (2017). Out of the box: Marketing principles that work and make sense. Philippines: Books Atbp. Publishing Corp.
Chicago
Garrovillas Eduardo P, . 2017. Out of the box: Marketing principles that work and make sense. Philippines: Books Atbp. Publishing Corp.
Harvard
Garrovillas E. P., . (2017). Out of the box: Marketing principles that work and make sense. Philippines: Books Atbp. Publishing Corp.
MLA
Garrovillas Eduardo P, . Out of the box: Marketing principles that work and make sense. Philippines: Books Atbp. Publishing Corp. 2017.