187490 Hickin, N. E. (1972). The woodworm problem. London : Hutchinson.
Lua i Stíl Chicago (17ú heag.)187490 Hickin, Norman Ernest. The Woodworm Problem. London : Hutchinson, 1972.
Lua MLA (9ú heag.)187490 Hickin, Norman Ernest. The Woodworm Problem. London : Hutchinson, 1972.
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