Citace podle APA (7th ed.)
Villiard, P. Collecting Stamps: Everything you need to know to pursue the world's most popular hobby for fun, knowledge, and profit.
Citace podle Chicago (17th ed.)
Villiard, Paul. Collecting Stamps: Everything You Need to Know to Pursue the World's Most Popular Hobby for Fun, Knowledge, and Profit.
Citace podle MLA (9th ed.)
Villiard, Paul. Collecting Stamps: Everything You Need to Know to Pursue the World's Most Popular Hobby for Fun, Knowledge, and Profit.
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