Gaya APA

PER-PY, E, N, I, J, 1. (2004). Ensiklopedi Nasional Indonesia Jilid 13 PER-PY (2004) . Jakarta: Delta Pamungkas.

Gaya MLA

PER-PY, ENSIKLOPEDI, Nasional, Indonesia, Jilid, 13. "Ensiklopedi Nasional Indonesia Jilid 13 PER-PY (2004)". Jakarta: Delta Pamungkas, 2004. Printed Book.