APA (7th ed.) Citation

O'Neill, N., & O'Neill, G. (1974). Matrimonio abierto. Grijalbo.

Chicago Style (17th ed.) Citation

O'Neill, Nena, and George O'Neill. Matrimonio Abierto. Barcelona [etc.]: Grijalbo, 1974.

MLA (9th ed.) Citation

O'Neill, Nena, and George O'Neill. Matrimonio Abierto. Grijalbo, 1974.

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