Cut flowers: 1947 value estimated to have exceeded total of twenty-five million dollars
H. M. Butterfield, Agricultural Extension, Berkeley
California Agriculture 2(10):15-15. DOI: 10.3733/ca.v002n10p15.
Not available – first paragraph follows:
Commercial cut flower production in 1947 in California's more important flower-growing counties was estimated to be in excess of $25,000,000.
H. M. Butterfield is Agriculturist in Agricultural Extension, Berkeley.