Gaya APA

Gruenwald, G., P., N, I. (2000). Marketing and promotion series: New product development=pengembangan produk baru (Cet. 4). Jakarta: Elek Media Komputindo.

Gaya MLA

Gruenwald, George., P., Nanang, Indra. "Marketing and promotion series: New product development=pengembangan produk baru". Cet. 4 Jakarta: Elek Media Komputindo, 2000. Cetak.