APA (7th ed.) Citation

Introduction to ALGOL programming / [by] Torgil Ekman [and] Carl-Erik Froberg.

Chicago Style (17th ed.) Citation

Introduction to ALGOL Programming / [by] Torgil Ekman [and] Carl-Erik Froberg.

MLA (9th ed.) Citation

Introduction to ALGOL Programming / [by] Torgil Ekman [and] Carl-Erik Froberg.

Warning: These citations may not always be 100% accurate.