Gill, R. J. (1988). The scale insects of California. California Department of Food and Agriculture.
Citace podle Chicago (17th ed.)Gill, Raymond J. The Scale Insects of California. Sacramento, California, USA: California Department of Food and Agriculture, 1988.
Citace podle MLA (9th ed.)Gill, Raymond J. The Scale Insects of California. California Department of Food and Agriculture, 1988.
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