APA (7th ed.) Citation

Engel, L., & Piller, S. (1948). 1950, Rusia contra EE.UU. Mateu.

Chicago Style (17th ed.) Citation

Engel, L., and S. Piller. 1950, Rusia Contra EE.UU. Barcelona: Mateu, 1948.

MLA (9th ed.) Citation

Engel, L., and S. Piller. 1950, Rusia Contra EE.UU. Mateu, 1948.

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