APA (7th ed.) Citation

Anastácio, Z., Carvalho, G. S. d., & Clément, P. (2008). Portuguese primary school teachers' conceptions and obstacles to sex education in classroom.

Chicago Style (17th ed.) Citation

Anastácio, Zélia, Graça Simões de Carvalho, and Pierre Clément. Portuguese Primary School Teachers' Conceptions and Obstacles to Sex Education in Classroom. 2008.

MLA (8th ed.) Citation

Anastácio, Zélia, et al. Portuguese Primary School Teachers' Conceptions and Obstacles to Sex Education in Classroom. 2008.