Cita APA (7th ed.)

Schwerdtfeger, H. (1976). Introduction to group theory. Noordhoff International.

Cita Chicago (17th ed.)

Schwerdtfeger, Hans. Introduction to Group Theory. Leiden: Noordhoff International, 1976.

Cita MLA (9th ed.)

Schwerdtfeger, Hans. Introduction to Group Theory. Noordhoff International, 1976.