APA (7th ed.) Citation

Barlow, W. (1991). El Principio de Matthias Alexander. Paidós.

Chicago Style (17th ed.) Citation

Barlow, Wilfred. El Principio De Matthias Alexander. Barcelona [etc.]: Paidós, 1991.

MLA (9th ed.) Citation

Barlow, Wilfred. El Principio De Matthias Alexander. Paidós, 1991.

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