Holding, A. The Practice of Royal Icing. Springer International Publishing.
Style de citation Chicago (17e éd.)Holding, Audrey. The Practice of Royal Icing. Cham: Springer International Publishing.
Style de citation MLA (8e éd.)Holding, Audrey. The Practice of Royal Icing. Springer International Publishing.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.