Wallraff, H., Chappell, J., & Guilford, T. (1999). The roles of the sun and the landscape in pigeon homing.
Chicago Style (17th ed.) CitationWallraff, H., J. Chappell, and T. Guilford. The Roles of the Sun and the Landscape in Pigeon Homing. 1999.
MLA (9th ed.) CitationWallraff, H., et al. The Roles of the Sun and the Landscape in Pigeon Homing. 1999.
Warning: These citations may not always be 100% accurate.