Cita APA (7a ed.)
Tyler, V. E. Focus on Forgeries: A Guide to Forgeries of Common Stamps.
Cita Chicago Style (17a ed.)
Tyler, Varro E. Focus on Forgeries: A Guide to Forgeries of Common Stamps.
Cita MLA (9a ed.)
Tyler, Varro E. Focus on Forgeries: A Guide to Forgeries of Common Stamps.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.