The reference I would consult to get general information about the country of Bolivia is an encyclopedia.
Explanation:
The four given options are reference sources, but they contain different areas of information about the topic, the country bolivia can be found in all of them but for instance, an atlas is a compilation of maps, so it will only show us the map of bolivia with its specifications, as a dictionary will give a definition and an almanac will describe the dates of holidays or important national days, bit the encyclopedia will give detailed information about the country on politics, economics, history, territory, and every other aspect.
The encyclopedia is the best source to find general information about Bolivia. This book helps to get information on many subjects. The encyclopedias are commonly arranged alphabetically. It exists two types of encyclopedias, one is for a general search and the other is related to specific topics or subjects.
