APA Style

barbara, ., Dr.H.M.Zainuddin,M.Pd., . (1979). exercises in english petern and usage . Surabaya: UNESA UNIVERSITY Press Anggota IKAPI.

MLA Style

barbara, ., Dr.H.M.Zainuddin,M.Pd., . "exercises in english petern and usage". Surabaya: UNESA UNIVERSITY Press Anggota IKAPI, 1979. Buku PGSD.