Citace podle APA (7th ed.)

Langevich, H. Letter, To: Sister Olya From: Mother Helena Langevich, May 8, 1912.

Citace podle Chicago (17th ed.)

Langevich, Helena. Letter, To: Sister Olya From: Mother Helena Langevich, May 8, 1912.

Citace podle MLA (8th ed.)

Langevich, Helena. Letter, To: Sister Olya From: Mother Helena Langevich, May 8, 1912.

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