Gaya APA

Worthington-Roberts, B, S., Williams, S, R. (2000). Nutrition through the life cycle (4th Ed.). Singapore: McGraw-Hill.

Gaya MLA

Worthington-Roberts, Bonnie, S.., Williams, Sue, Rodwell. "Nutrition through the life cycle". 4th Ed. Singapore: McGraw-Hill, 2000. Text Non-Fiction.