APA (7th ed.) Citation

Jones, R. P. (1945). Ley farming in Sweden: A field day at Svalof. [publisher not identified].

Chicago Style (17th ed.) Citation

Jones, R. Peter. Ley Farming in Sweden: A Field Day at Svalof. Aberystwyth: [publisher not identified], 1945.

MLA (9th ed.) Citation

Jones, R. Peter. Ley Farming in Sweden: A Field Day at Svalof. [publisher not identified], 1945.