Romero et al., 1976. Aust. J. Exp. Agric. Anim. Husb., 16: 308-314

Romero, A. V. ; Siebert, B. D. ; Murray, R. M., 1976. A study on the effect of frequency of urea ingestion on the utilization of low quality roughage by steers. Aust. J. Exp. Agric. Anim. Husb., 16: 308-314