APA استشهاد

Ekman, T., & Froberg, C. E. (1967). introduction to Algol programming (2nd ed.). Student litteratur.

استشهاد بنمط شيكاغو

Ekman, Torgil, و Carl Erik Froberg. Introduction to Algol Programming. 2nd ed. Lund: Student litteratur, 1967.

MLA استشهاد

Ekman, Torgil, و Carl Erik Froberg. Introduction to Algol Programming. 2nd ed. Student litteratur, 1967.