Gaya APA
Sriwidharto, . (198,719,972,001).
Buku pedoman ahli pemasang pipa / Sri Widharto (Cet.1,3,4).
Jakarta:
Pradnya Paramita.
Gaya MLA
Sriwidharto, .
"Buku pedoman ahli pemasang pipa / Sri Widharto".
Cet.1,3,4
Jakarta:
Pradnya Paramita,
198,719,972,001.
Textbook.