एपीए उद्धरण

Frendo, E. (2012). English for construction 1 A1-A2: Vocational English course book. Harlow: Pearson.

शिकागो स्टाइल उद्धरण

Frendo, Evan. English for Construction 1 A1-A2: Vocational English Course Book. Harlow: Pearson, 2012.

एमएलए उद्धरण

Frendo, Evan. English for Construction 1 A1-A2: Vocational English Course Book. Harlow: Pearson, 2012.