Statistical procedures for agricultural research: (2nd edition) K.A. Gomez and A.A. Gomez. John Wiley, New York, 1984. xvi + 680 pp., US$39.95. John Wiley, Chichester, Sussex, U.K., £37.95. Also paperback £12.95/US$15.50. ISBN 0-471-87092-7

[1]  H. D. Patterson,et al.  Block designs for variety trials , 1978, The Journal of Agricultural Science.