Cita APA (7a ed.)

Gumilev, L. N. (1987). Searches for an imaginary kingdom: The legend of the kingdom of Prester John. University Press.

Cita Chicago Style (17a ed.)

Gumilev, L. N. Searches for an Imaginary Kingdom: The Legend of the Kingdom of Prester John. Cambridge [etc.]: University Press, 1987.

Cita MLA (9a ed.)

Gumilev, L. N. Searches for an Imaginary Kingdom: The Legend of the Kingdom of Prester John. University Press, 1987.