Langevich, H. Letter, To: Sister Olya From: Mother Helena Langevich, May 8, 1912.
Chicago-стиль цитированияLangevich, Helena. Letter, To: Sister Olya From: Mother Helena Langevich, May 8, 1912.
MLA-цитированиеLangevich, Helena. Letter, To: Sister Olya From: Mother Helena Langevich, May 8, 1912.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.