The best way to identify trade publications is through searching for your topic in the business article databases (such as Business Source Premier) and then filtering by "trade publications". You can also search the Journals and Periodicals available from the Cheng Library by a simple term such as "restatuant".
Keep in mind that other industries might apply.
We ran two sample searches through Business Source Premier. Click to access the results:
Use Google Advanced Search to locate trade associations and reports. Limit your search to the .org domain.