APA Цитирование

Langevich, H. Letter, To: Sister Olya From: Mother Helena Langevich, May 13, 1912.

Chicago-стиль цитирования

Langevich, Helena. Letter, To: Sister Olya From: Mother Helena Langevich, May 13, 1912.

MLA-цитирование

Langevich, Helena. Letter, To: Sister Olya From: Mother Helena Langevich, May 13, 1912.

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.