APA aipamena

Langevich, H. Letter, To: Sister Olya From: Mother Helena Langevich, May 9, 1912.

Chicago Style aipamena

Langevich, Helena. Letter, To: Sister Olya From: Mother Helena Langevich, May 9, 1912.

MLA aipamena

Langevich, Helena. Letter, To: Sister Olya From: Mother Helena Langevich, May 9, 1912.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.