APA-referens (7:e uppl.)

Mathias, M., & Gallagher, J. (2016). SWIFT PROGRAMMING: THE BIG NERD RANCH GUIDE. Big Nerd Ranch.

Chicago-referens (17:e uppl.)

Mathias, Matthew, och John Gallagher. SWIFT PROGRAMMING: THE BIG NERD RANCH GUIDE. Atlanta, GA: Big Nerd Ranch, 2016.

MLA-referens (9:e uppl.)

Mathias, Matthew, och John Gallagher. SWIFT PROGRAMMING: THE BIG NERD RANCH GUIDE. Big Nerd Ranch, 2016.