Gaya APA

Young, A., Service, C, G, E. (1984). Arthur Young's LotusTM 1-2-3TM Self-Teaching Video Course: An Interactive Video and Computer Based Training Program . United States of America: Arthur Young & Clarkson Gordon Educational Service.

Gaya MLA

Young, Arthur., Service, Clarkson, Gordon, Educational. "Arthur Young's LotusTM 1-2-3TM Self-Teaching Video Course: An Interactive Video and Computer Based Training Program". United States of America: Arthur Young & Clarkson Gordon Educational Service, 1984. Texts.