APA

Grant P. R. G. B. R. y. A. A., . (2006). A developing paradigm for the development of bird beaks. London: Linnean Society of London.

Chicago

Grant Peter R Grant B Rosemary y Abzhanov A, . 2006. A developing paradigm for the development of bird beaks. London: Linnean Society of London.

Harvard

Grant P. R. G. B. R. y. A. A., . (2006). A developing paradigm for the development of bird beaks. London: Linnean Society of London.

MLA

Grant Peter R Grant B Rosemary y Abzhanov A, . A developing paradigm for the development of bird beaks. London: Linnean Society of London. 2006.