APA (7th ed.) Citation

Hay, M. D. (2015). The Santa Klaus murder / Mavis Doriel Hay. The British Library.

Chicago Style (17th ed.) Citation

Hay, Mavis Doriel. The Santa Klaus Murder / Mavis Doriel Hay. London: The British Library, 2015.

MLA (9th ed.) Citation

Hay, Mavis Doriel. The Santa Klaus Murder / Mavis Doriel Hay. The British Library, 2015.

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