APA (7th ed.) Citation

Perl, P. (1979). FERNS. Virginia, Time-life Books.

Chicago Style (17th ed.) Citation

Perl, Philip. FERNS. Virginia, Time-life Books, 1979.

MLA (8th ed.) Citation

Perl, Philip. FERNS. Virginia, Time-life Books, 1979.

Warning: These citations may not always be 100% accurate.