APA (7th ed.) Citation

Oldenbourg, Z. (1972). The heirs of the kingdom. Collins.

Chicago Style (17th ed.) Citation

Oldenbourg, Zoe. The Heirs of the Kingdom. London: Collins, 1972.

MLA (8th ed.) Citation

Oldenbourg, Zoe. The Heirs of the Kingdom. Collins, 1972.

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