APA

Gibson J. R., . (1976). Imperial Russia in Frontier America : the changing geography of supply of Russian America, 1784-1867. New York: Oxford University Press.

Chicago

Gibson James R, . 1976. Imperial Russia in Frontier America : the changing geography of supply of Russian America, 1784-1867. New York: Oxford University Press.

Harvard

Gibson J. R., . (1976). Imperial Russia in Frontier America : the changing geography of supply of Russian America, 1784-1867. New York: Oxford University Press.

MLA

Gibson James R, . Imperial Russia in Frontier America : the changing geography of supply of Russian America, 1784-1867. New York: Oxford University Press. 1976.