TY - RPRT TI - Sampling, aggregation, and variance estimation for area, yield, and production in LACIE AU - Hallum, C. R. AU - Chhikara, R. S. AU - Feiveson, A. H. AU - Houston, A. G. PY - 1979 UR - https://ntrs.nasa.gov/citations/19800007189 ID - 19800007189 ER -