Columbia subject headings:
Pinghu lao ding feng jiang yuan--Sources.
Sauce industry--China--Pinghu Shi--Sources.
Harvard subject headings:
Pickle industry--China--Pinghu Shi--History.
Pinghu lao ding feng jiang yuan--Accounting--Archives.
Sauce industry--China--Pinghu Shi--History.
Princeton subject headings:
Canning and preserving--China--Pinghu Shi--Sources.
Cooking, Chinese--Sources.
Pinghu lao ding feng jiang yuan--Sources.