Penggayaan APA

PERL, Philip. (1977). Ferns . Virginia: Time-Life Books.

Chicago Style

PERL, Philip. Ferns. Virginia: Time-Life Books, 1977. Buku.

MLA Style

PERL, Philip. Ferns. Virginia: Time-Life Books, 1977. Buku.

Turabian Style

PERL, Philip. Ferns. Virginia: Time-Life Books, 1977. Buku.