@article{gardner_1975, title={FARM RETAIL PRICE SPREAD IN A COMPETITIVE FOOD-INDUSTRY}, volume={57}, ISSN={["1467-8276"]}, DOI={10.2307/1238402}, abstractNote={Abstract}, number={3}, journal={AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS}, author={GARDNER, BL}, year={1975}, pages={399–409} }
 @article{gardner_1974, title={Farm population decline and the income of rural families}, volume={56}, DOI={10.2307/1238614}, abstractNote={Abstract}, number={3}, journal={American Journal of Agricultural Economics}, author={Gardner, B. L.}, year={1974}, pages={600} }