APA aipamena

PERL, P. (1977). Fern Philip Perl. Time-Life Books.

Chicago Style aipamena

PERL, Philip. Fern Philip Perl. Time-Life Books, 1977.

MLA aipamena

PERL, Philip. Fern Philip Perl. Time-Life Books, 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.