[Unpublished letter of I. M. Sechenov to A. N. Chernyshevskii, son N. G. Chernyshevskii].
D049672:History, 19th Century; D049673:History, 20th Century; D009679:Nuclear Family
BIOGRAPHIES
Neopublikovannoe pis'mo I. M. Sechenova k A. N. Chernyshevskomu, synu N. G. Chernyshevskogo.