Cita APA (7th ed.)

Merila, J., Sheldon, B., & Griffith, S. (2003). Heterotic effects on fitness in a wild bird population.

Cita Chicago (17th ed.)

Merila, J., B. Sheldon, i S. Griffith. Heterotic Effects on Fitness in a Wild Bird Population. 2003.

Cita MLA (9th ed.)

Merila, J., et al. Heterotic Effects on Fitness in a Wild Bird Population. 2003.