Cita APA

Ferreira, N. N., dos Santos, A., Ribeiro, M. L., Oliveira, L. C. d., Botero, W. G., & Rocha, J. C. (2009). Humic Substances: Possibility of New Therapeutic Application.

Citación estilo Chicago

Ferreira, Natália Noronha, Ademir dos Santos, Maria Lucia Ribeiro, Luciana Camargo de Oliveira, Wander Gustavo Botero, y Julio Cesar Rocha. Humic Substances: Possibility of New Therapeutic Application. 2009.

Cita MLA

Ferreira, Natália Noronha, et al. Humic Substances: Possibility of New Therapeutic Application. 2009.