APA

Mjöberg E., Mjöberg E., . (1930). Borneo. Warszawa: .

Chicago

Mjöberg Eric, Mjöberg Eric, . 1930. Borneo. Warszawa: .

Harvard

Mjöberg E., Mjöberg E., . (1930). Borneo. Warszawa: .

MLA

Mjöberg Eric, Mjöberg Eric, . Borneo. Warszawa: . 1930.