Engin, Vahdettin, 1956- (Personal Name)

Rumeli demiryolları, 1993: t.p. (Dr. Vahdettin Engin)

1868'den 1923'e Mekteb-i Sultani,2003: t.p. (Prof. Dr. Vahdettin Engin) p. 360 (b. 1956 in Kocaeli)