Seymour, J. (1978). Mushrooms toadstools. Colour Library International.
Lua i Stíl Chicago (17ú heag.)Seymour, Jacqueline. Mushrooms Toadstools. London: Colour Library International, 1978.
Lua MLA (9ú heag.)Seymour, Jacqueline. Mushrooms Toadstools. Colour Library International, 1978.
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