APA
Virmani S., Viraktamath B., Casal C., Toledo R., Lopez M. & Manalo J. (1997). Hybrid Rice Breeding Manual. Los Banos, Laguna, Philippines: International rice Research Institute.
Chicago
Virmani S.S, Viraktamath B.C, Casal C.L, Toledo R.S, Lopez M.T and Manalo J.O. 1997. Hybrid Rice Breeding Manual. Los Banos, Laguna, Philippines: International rice Research Institute.
Harvard
Virmani S., Viraktamath B., Casal C., Toledo R., Lopez M. and Manalo J. (1997). Hybrid Rice Breeding Manual. Los Banos, Laguna, Philippines: International rice Research Institute.
MLA
Virmani S.S, Viraktamath B.C, Casal C.L, Toledo R.S, Lopez M.T and Manalo J.O. Hybrid Rice Breeding Manual. Los Banos, Laguna, Philippines: International rice Research Institute. 1997.
