Citazione Stile APA (7a Edizione)
Scott Publishing Co & Harmer, G. R. (1948). Scott´s Standard Postage Stamp Catalogue: (The Encyclopedia of Philately) 1949 Combined edition (Centésima quinta edición.). Scott Publications, Inc..
Citazione stile Chigago Style (17a edizione)
Scott Publishing Co e Gordon R. Harmer. Scott´s Standard Postage Stamp Catalogue: (The Encyclopedia of Philately) 1949 Combined Edition. Centésima quinta edición. New York, N. Y.: Scott Publications, Inc., 1948.
Citatione MLA (9a ed.)
Scott Publishing Co e Gordon R. Harmer. Scott´s Standard Postage Stamp Catalogue: (The Encyclopedia of Philately) 1949 Combined Edition. Centésima quinta edición. Scott Publications, Inc., 1948.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.