MLA

Phillips, Caryl (1958). Somewhere in England, drafts. Box 60. 1997-2002. https://collections.library.yale.edu/catalog/17318889.

APA, 6th edition

Phillips, Caryl (1958). (["Box 60"])(1997-2002)[Somewhere in England, drafts]. https://collections.library.yale.edu/catalog/17318889.