APA

Vernadsky G., . (1972). Source Book for Russian History from Early Times to 1917. New Haven: Yale UP.

Chicago

Vernadsky George, . 1972. Source Book for Russian History from Early Times to 1917. New Haven: Yale UP.

Harvard

Vernadsky G., . (1972). Source Book for Russian History from Early Times to 1917. New Haven: Yale UP.

MLA

Vernadsky George, . Source Book for Russian History from Early Times to 1917. New Haven: Yale UP. 1972.