In which of the following resources can a technician locate storage requirements for a particular drug while working in a pharmacy?

The United States Pharmacopeia and National Formulary (USP-NF) is the most reliable resource for a pharmacy technician to locate storage requirements for a particular drug.
The USP-NF is a compendium of official standards for drugs, dietary supplements, and other healthcare products. It is published by the United States Pharmacopeial Convention (USP), a non-profit organization that sets standards for the quality, identity, strength, purity, and performance of medicines.
The USP-NF includes standards for the storage of drugs, which are based on the drug's physical and chemical properties. The storage standards specify the temperature, humidity, and light conditions under which the drug should be stored.
Other resources, such as Davis' Drug Guide, manufacturer invoices, and Taber's Medical Dictionary, may also contain information on drug storage requirements. However, the USP-NF is the most comprehensive and authoritative resource on this topic.