Michelbacher, A., Bacon, O., & Wade, W. (1952). Walnut aphid investigations: 1951 tests on Payne walnuts help develop economical control program under northern California conditions. University of California Agriculture and Natural Resources.
Lua i Stíl Chicago (17ú heag.)Michelbacher, A., O. Bacon, agus W. Wade. Walnut Aphid Investigations: 1951 Tests on Payne Walnuts Help Develop Economical Control Program Under Northern California Conditions. University of California Agriculture and Natural Resources, 1952.
Lua MLA (9ú heag.)Michelbacher, A., et al. Walnut Aphid Investigations: 1951 Tests on Payne Walnuts Help Develop Economical Control Program Under Northern California Conditions. University of California Agriculture and Natural Resources, 1952.
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