APA (7th ed.) Citation

Ray, V. (1969). Sistema de lectura veloz. Perseo.

Chicago Style (17th ed.) Citation

Ray, Víctor. Sistema De Lectura Veloz. Buenos Aires: Perseo, 1969.

MLA (9th ed.) Citation

Ray, Víctor. Sistema De Lectura Veloz. Perseo, 1969.

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