Letters of John Cowper Powys to Louis Wilkinson, 1935-1956.
MLA
Powys, John Cowper and Louise Umfreville Wilkinson. Letters of John Cowper Powys to Louis Wilkinson, 1935-1956. London : Macdonald, [1958]
APA
Powys, J. & Wilkinson, L. (1958). Letters of John Cowper Powys to Louis Wilkinson, 1935-1956. London : Macdonald.
Chicago
Powys, John Cowper and Louise Umfreville Wilkinson. Letters of John Cowper Powys to Louis Wilkinson, 1935-1956. London : Macdonald, [1958]