PERL, P. (1978). Cactil And Succulents Philip Perl. Time Life Books.
Chicagoスタイル(17版)引用形式PERL, Philip. Cactil And Succulents Philip Perl. Time Life Books, 1978.
MLA(8版)引用形式PERL, Philip. Cactil And Succulents Philip Perl. Time Life Books, 1978.
警告: この引用は必ずしも正確ではありません.