Burger, A., & Hajdu, G. (1970). Economic problems of consumers' services. Akadémiai Kiadó.
Цитирование в стиле Чикаго (17-е изд.)Burger, Anna, и Gy Hajdu. Economic Problems of Consumers' Services. Budapest: Akadémiai Kiadó, 1970.
Цитирование MLA (9-е изд.)Burger, Anna, и Gy Hajdu. Economic Problems of Consumers' Services. Akadémiai Kiadó, 1970.