APA (7th ed.) Citation

Baptista, P. A. N. (2009). Permutas. Horizonte, 7(14), 218-221.

Chicago Style (17th ed.) Citation

Baptista, Paulo Agostinho Nogueira. "Permutas." Horizonte 7, no. 14 (2009): 218-221.

MLA (9th ed.) Citation

Baptista, Paulo Agostinho Nogueira. "Permutas." Horizonte, vol. 7, no. 14, 2009, pp. 218-221.

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