Gaya APA

Widarso, W., Mariani, L. (1999). Complete English Grammar : Wishnusubroto Widarso dan Lulut Mariani (cet. 5). Yogyakarta: Kanisius.

Gaya MLA

Widarso, Wishnusubroto., Mariani, Lulut.. "Complete English Grammar : Wishnusubroto Widarso dan Lulut Mariani". cet. 5 Yogyakarta: Kanisius, 1999. Buku.