APA (7th ed.) Citation

Valtin, J. (1947). Castle in the sand. Invincible Press.

Chicago Style (17th ed.) Citation

Valtin, Jan. Castle in the Sand. Sydney: Invincible Press, 1947.

MLA (8th ed.) Citation

Valtin, Jan. Castle in the Sand. Invincible Press, 1947.

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