Gaya APA

Perl, P. (1984). The Time-Life Enyclopedia of Gardening: Ferns (Cet. 3 Ed. Rev). Canada: Time-Life Books Inc.

Gaya MLA

Perl, Philip. "The Time-Life Enyclopedia of Gardening: Ferns". Cet. 3 Ed. Rev Canada: Time-Life Books Inc, 1984. Text.