Encyclopedias:
Dictionaries:
Handbooks, Manuals & Guides:
To find entries in encyclopedias on your topic, use UC Library Search and search your keyword(s). For example: "rock cycle". When you get your results, look on the left toolbar for Resource Type and select Reference Entries.
Here are a few samples of dictionaries. To find more, use UC Library Search and search the keyword "dictionary" and combine it with any keywords of your choice. For example: dictionary AND mineral*. Then select Resource Type > Books.
Here are a few samples of handbooks, manuals and field guides. To find more, use UC Library Search and search the keywords (handbook OR manual) and combine it with any keywords of your choice. For example: (handbook OR manual) AND stratigraph*. Then select Resource Type > Books, and filter by recent years. Replace (handbook OR manual) with "field guide" if you are looking for a field guide.