Siebert et al., 1975. Aust. J. Exp. Agric. Anim. Husb., 15 (72): 12-16

Siebert, B. D.; Field, J. B. F., 1975. Reproductive activity in beef heifers following post-weaning feeding on spear grass hay alone or with supplements. Aust. J. Exp. Agric. Anim. Husb., 15 (72): 12-16