Herdan, G. (1960). Type-token mathematics: A textbook of mathematical linguistics. Mouton.
Cita Chicago (17th ed.)Herdan, Gustav. Type-token Mathematics: A Textbook of Mathematical Linguistics. s-Gravenhage: Mouton, 1960.
Cita MLA (9th ed.)Herdan, Gustav. Type-token Mathematics: A Textbook of Mathematical Linguistics. Mouton, 1960.
Atenció: Aquestes cites poden no estar 100% correctes.