Gaya APA

Backer, C. (1965). Flora of Java : spermatophytes only . Leyden: Publisher Under The Auspices of the Rijksherbarium.

Gaya MLA

Backer, C.A.. "Flora of Java : spermatophytes only". Leyden: Publisher Under The Auspices of the Rijksherbarium, 1965. Text.