Hargreaves, R. (1978). MR. WORRY. Great Britain : World International Ltd..
Chicago-čujuhus (17. p.)Hargreaves, Roger. MR. WORRY. Great Britain : World International Ltd., 1978.
MLA-čujuhus (9. p.)Hargreaves, Roger. MR. WORRY. Great Britain : World International Ltd., 1978.
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