Langevich, H. Letter, To: Sister Olya From: Mother Helena Langevich, May 8, 1912.
Chicago (17e ed.) BronvermeldingLangevich, Helena. Letter, To: Sister Olya From: Mother Helena Langevich, May 8, 1912.
MLA (8e ed.) BronvermeldingLangevich, Helena. Letter, To: Sister Olya From: Mother Helena Langevich, May 8, 1912.
Let op: Deze citaties zijn niet altijd 100% accuraat.