For detailed multipart monograph cataloging policies and procedures, see:
Multipart Policies and Procedures [1]
Multipart Monograph MFHD Guidelines [2]
Other related documents:
Preliminary Bibliographic Records for Monographic Series & MPMs on Standing Order [3]
Links
[1] https://web.library.yale.edu/cataloging/multipart-workflow
[2] https://web.library.yale.edu/cataloging/multipartmfhdrev
[3] https://web.library.yale.edu/cataloging/workflow/sso
[4] https://web.library.yale.edu/cataloging/serialmfhd
[5] https://web.library.yale.edu/cataloging/authorities/series-policy-book