APA-referens (7:e uppl.)

Soewardi, B. (1974). Studies on alang-alang (Imperata cylindrica (L.) Beauv.) for cattle feeding: 1. the effects of carbohydrate sources in urea containing concentrate on feed utilization. SEAMEO-BIOTROP.

Chicago-referens (17:e uppl.)

Soewardi, Bedjo. Studies on Alang-alang (Imperata Cylindrica (L.) Beauv.) for Cattle Feeding: 1. the Effects of Carbohydrate Sources in Urea Containing Concentrate on Feed Utilization. Bogor, Indonesia: SEAMEO-BIOTROP, 1974.

MLA-referens (8:e uppl.)

Soewardi, Bedjo. Studies on Alang-alang (Imperata Cylindrica (L.) Beauv.) for Cattle Feeding: 1. the Effects of Carbohydrate Sources in Urea Containing Concentrate on Feed Utilization. SEAMEO-BIOTROP, 1974.