APA

Grant P. R. B. P. T., . (1980). Rainfall on the Galápagos and the demography of Darwin's finches. : .

Chicago

Grant P R Boag P T, . 1980. Rainfall on the Galápagos and the demography of Darwin's finches. : .

Harvard

Grant P. R. B. P. T., . (1980). Rainfall on the Galápagos and the demography of Darwin's finches. : .

MLA

Grant P R Boag P T, . Rainfall on the Galápagos and the demography of Darwin's finches. : . 1980.