Barber, H. G., & Haworth, E. Y. (1981). A guide to the morphology of the diatom frustule: With a key to the British freshwater genera. Freshwater Biological Association.
Citace podle Chicago (17th ed.)Barber, Horace G., a Elizabeth Y. Haworth. A Guide to the Morphology of the Diatom Frustule: With a Key to the British Freshwater Genera. Cambria: Freshwater Biological Association, 1981.
Citace podle MLA (9th ed.)Barber, Horace G., a Elizabeth Y. Haworth. A Guide to the Morphology of the Diatom Frustule: With a Key to the British Freshwater Genera. Freshwater Biological Association, 1981.
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