APA (7th ed.) Citation

National Council of Teachers of Mathematics & Galván Anaya, F. (1968). Números racionales. Editorial Trillas.

Chicago Style (17th ed.) Citation

National Council of Teachers of Mathematics and Federico Galván Anaya. Números Racionales. México: Editorial Trillas, 1968.

MLA (9th ed.) Citation

National Council of Teachers of Mathematics and Federico Galván Anaya. Números Racionales. Editorial Trillas, 1968.