APA

Davis P. W., Solomon E. P., . (1979). The world of biology. New York: McGraw-Hill.

Chicago

Davis P William, Solomon Eldra Pearl, . 1979. The world of biology. New York: McGraw-Hill.

Harvard

Davis P. W., Solomon E. P., . (1979). The world of biology. New York: McGraw-Hill.

MLA

Davis P William, Solomon Eldra Pearl, . The world of biology. New York: McGraw-Hill. 1979.