APA
Alston J. M., Marra M. C. e. a. & Chan-Kang C. (2000). A meta-analysis of rates of return to agricultural R and D. Washington: IFPRI.
Chicago
Alston Julian M, Marra Michele C et al and Chan-Kang Connie. 2000. A meta-analysis of rates of return to agricultural R and D. Washington: IFPRI.
Harvard
Alston J. M., Marra M. C. e. a. and Chan-Kang C. (2000). A meta-analysis of rates of return to agricultural R and D. Washington: IFPRI.
MLA
Alston Julian M, Marra Michele C et al and Chan-Kang Connie. A meta-analysis of rates of return to agricultural R and D. Washington: IFPRI. 2000.