Παραπομπή APA

Acock, A. C. (2014). Gentle introduction to Stata (4th ed.). Stata Press Publication.

Παραπομπή Chicago Style

Acock, Alan C. Gentle Introduction to Stata. 4th ed. Texas: Stata Press Publication, 2014.

Παραπομπή MLA

Acock, Alan C. Gentle Introduction to Stata. 4th ed. Stata Press Publication, 2014.