Marginal basin geology: volcanic and associated sedimentary and tectonic processes in modern and ancient marginal basins, edited by B.P. Kokelaar and M.F. HowellsB. P. Kokelaar, M. F. Howells · First published 1984Open the Tome
Dolgarrog: description of 1:25 000 sheet SH 76, by M.F. Howells [and others]M. F. Howells · First published 1981Open the Tome
Ordovician ash-flow tuffs in eastern Snowdonia [by] M.F. Howells, B.E. Leveridge and C.D.R. EvansMalcolm Fletcher Howells · First published 1973Open the Tome
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