APA (7th ed.) Citation

Afonso, Ó., Monteiro, S., & Thompson, M. J. R. (2012). A growth model for the quadruple helix.

Chicago Style (17th ed.) Citation

Afonso, Óscar, Sara Monteiro, and Maria João Ribeiro Thompson. A Growth Model for the Quadruple Helix. 2012.

MLA (8th ed.) Citation

Afonso, Óscar, et al. A Growth Model for the Quadruple Helix. 2012.