Gaya APA

Backer, C, , , A., Brink, B, V, D. (1968). Flora of Java ; Spermatophytes only . Netherlands: Wolters-Noordhoff N.V..

Gaya MLA

Backer, C, , , A., Brink, Bakhuizen, Van, Den. "Flora of Java ; Spermatophytes only". Netherlands: Wolters-Noordhoff N.V., 1968. Text.