Cita APA (7th ed.)
Blaney, D. B. Tips for promoting youth Philately.
Cita Chicago (17th ed.)
Blaney, Dorothy B. Tips for Promoting Youth Philately.
Cita MLA (9th ed.)
Blaney, Dorothy B. Tips for Promoting Youth Philately.
Atenció: Aquestes cites poden no estar 100% correctes.