[Seven labels printed on one sheet for products prepared by the Association].

MLA

Producers' Exchange of Labour for Labour Association (Philadelphia, Pa.). [Seven labels printed on one sheet for products prepared by the Association]. [Pennsylvania?] : [publisher not identified], [1827?]

APA

Producers' Exchange of Labour for Labour Association (Philadelphia, P. (1827). [Seven labels printed on one sheet for products prepared by the Association]. [Pennsylvania?] : [publisher not identified].

Chicago

Producers' Exchange of Labour for Labour Association (Philadelphia, Pa.). [Seven labels printed on one sheet for products prepared by the Association]. [Pennsylvania?] : [publisher not identified], [1827?]