APA (7th ed.) Citation

Larkin, P. J., & Ralphs, D. H. (1974). Mediaeval world (1. publ.). Hulton.

Chicago Style (17th ed.) Citation

Larkin, P. J., and Dorothy H. Ralphs. Mediaeval World. 1. publ. Amersham: Hulton, 1974.

MLA (9th ed.) Citation

Larkin, P. J., and Dorothy H. Ralphs. Mediaeval World. 1. publ. Hulton, 1974.