APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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