Cita APA (7th ed.)

Gould, J. W. (1955). American interests in Sumatra, 1784 to 1873. s. n.].

Cita Chicago (17th ed.)

Gould, James Warren. American Interests in Sumatra, 1784 to 1873. [Medford, Mass: s. n.], 1955.

Cita MLA (9th ed.)

Gould, James Warren. American Interests in Sumatra, 1784 to 1873. s. n.], 1955.