Cita APA (7a ed.)

Crummey, R. O. (1987). The formation of Muscovy 1304-1613. Longman.

Cita Chicago Style (17a ed.)

Crummey, Robert O. The Formation of Muscovy 1304-1613. London [etc.]: Longman, 1987.

Cita MLA (9a ed.)

Crummey, Robert O. The Formation of Muscovy 1304-1613. Longman, 1987.