APA (7th ed.) Citation

Gemmell, D. (1989). The king beyond the gate (Legend ed.). Legend.

Chicago Style (17th ed.) Citation

Gemmell, David. The King Beyond the Gate. Legend ed. London: Legend, 1989.

MLA (9th ed.) Citation

Gemmell, David. The King Beyond the Gate. Legend ed. Legend, 1989.

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