APA (7th ed.) Citation

Blackett, M., & Waddell, H. (1973). The mark of the maker: A portrait of Helen Waddell. Constable.

Chicago Style (17th ed.) Citation

Blackett, Monica, and Helen Waddell. The Mark of the Maker: A Portrait of Helen Waddell. London: Constable, 1973.

MLA (8th ed.) Citation

Blackett, Monica, and Helen Waddell. The Mark of the Maker: A Portrait of Helen Waddell. Constable, 1973.

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