Gaya APA

Gassing, S, S., Suryanto, . (2016). Public Relations (Edisi 1). Yogyakarta: Penerbit Andi.

Gaya MLA

Gassing, Syarifuddin, S.., Suryanto, . "Public Relations". Edisi 1 Yogyakarta: Penerbit Andi, 2016. TEXT.