APA (7th ed.) Citation

Champion Map Corporation. (1974). Map of Holyoke, Massachusetts. Champion Map Corp..

Chicago Style (17th ed.) Citation

Champion Map Corporation. Map of Holyoke, Massachusetts. Charlotte, N.C.: Champion Map Corp., 1974.

MLA (9th ed.) Citation

Champion Map Corporation. Map of Holyoke, Massachusetts. Champion Map Corp., 1974.

Warning: These citations may not always be 100% accurate.