Gaya APA

BERGMAN, B, H, H. ([s.a.]). Investigations on three jassidae in relation to some virus diseases of arachis hypogaea l. . [s.l.]: [s.n.].

Gaya MLA

BERGMAN, Berend, Heddo, Hendriks. "Investigations on three jassidae in relation to some virus diseases of arachis hypogaea l.". [s.l.]: [s.n.], [s.a.]. Buku.