APA (7th ed.) Citation

Gumilëv, L. N., & Smith, R. E. F. (1987). Searches for an imaginary kingdom: The legend of the kingdom of Prester John. Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Gumilëv, Lev Nikolaevič, and Robert Ernest Frederick Smith. Searches for an Imaginary Kingdom: The Legend of the Kingdom of Prester John. Cambridge [u.a.]: Cambridge Univ. Press, 1987.

MLA (8th ed.) Citation

Gumilëv, Lev Nikolaevič, and Robert Ernest Frederick Smith. Searches for an Imaginary Kingdom: The Legend of the Kingdom of Prester John. Cambridge Univ. Press, 1987.

Warning: These citations may not always be 100% accurate.