Kuipers, J. D. (1950). Resale price maintenance in Great Britain: With special reference to the grocery trade. N.V. Drukkerij "Vada".
Lua i Stíl Chicago (17ú heag.)Kuipers, John Dennis. Resale Price Maintenance in Great Britain: With Special Reference to the Grocery Trade. Wageningen: N.V. Drukkerij "Vada", 1950.
Lua MLA (8ú heag.)Kuipers, John Dennis. Resale Price Maintenance in Great Britain: With Special Reference to the Grocery Trade. N.V. Drukkerij "Vada", 1950.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.