Vol. 16, Issue 6, 1962June 01, 1962 PDT
ccby-nc-nd-4.0
Pear decline research
Pear decline research
W Griggs, K Ryugo, R Bethell, K Uriu,
Griggs, W, K Ryugo, R Bethell, and K Uriu. 1962. “Pear Decline Research.” California Agriculture 16 (6): 9–10.