GIEDROYC, Jerzy; ZAMOYSKI, August; ZAMOYSKA, Hélène. Letters 1956-1970. Poland: Lodz University Press,2024. DOI: 10.18778/8331-403-7. Disponível em: https://www.press.uni.lodz.pl/index.php/wul/catalog/book/967. Acesso em: 12 feb. 2026.