APA (7th ed.) Citation

Postigo, L. (1969). El mundo de la energia. Ramón Sopena.

Chicago Style (17th ed.) Citation

Postigo, Luis. El Mundo De La Energia. Barcelona: Ramón Sopena, 1969.

MLA (9th ed.) Citation

Postigo, Luis. El Mundo De La Energia. Ramón Sopena, 1969.

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