APA (7th ed.) Citation

Amézola, J. R. d. (1968). The secret of the cosmos. Vantage.

Chicago Style (17th ed.) Citation

Amézola, José Ramón de. The Secret of the Cosmos. New York [etc.]: Vantage, 1968.

MLA (9th ed.) Citation

Amézola, José Ramón de. The Secret of the Cosmos. Vantage, 1968.

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