APA

Osborne R. H., De George F. V., . (1959). Genetic basis of morphological variation: an evaluation and application of the twin study method. Cambridge, Mass: Published for the Commonwealth Fund by Harvard University Press.

Chicago

Osborne Richard H, De George Frances V, . 1959. Genetic basis of morphological variation: an evaluation and application of the twin study method. Cambridge, Mass: Published for the Commonwealth Fund by Harvard University Press.

Harvard

Osborne R. H., De George F. V., . (1959). Genetic basis of morphological variation: an evaluation and application of the twin study method. Cambridge, Mass: Published for the Commonwealth Fund by Harvard University Press.

MLA

Osborne Richard H, De George Frances V, . Genetic basis of morphological variation: an evaluation and application of the twin study method. Cambridge, Mass: Published for the Commonwealth Fund by Harvard University Press. 1959.