Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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