Cita APA (7a ed.)
Photographic Products Industry Profile: United States. Marketline.
Cita Chicago Style (17a ed.)
Photographic Products Industry Profile: United States. Marketline.
Cita MLA (9a ed.)
Photographic Products Industry Profile: United States. Marketline.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.