APA (7e ed.) Bronvermelding

Szymkowicz, A. (2013). The why overhead (1st print., trade ed.). Original Works Pub..

Chicago (17e ed.) Bronvermelding

Szymkowicz, Adam. The Why Overhead. 1st print., trade ed. San Bernardino, CA: Original Works Pub., 2013.

MLA (9e ed.) Bronvermelding

Szymkowicz, Adam. The Why Overhead. 1st print., trade ed. Original Works Pub., 2013.