H. M. Clay

An age difficulty in separating spatially contiguous data.

H. M. Clay, 1956, Journal of Gerontology.

A study of performance in relation to age at two printing works.

H. M. Clay, H M CLAY, 1956, Journal of gerontology.

Changes of performance with age on similar tasks of varying complexity.

H. M. Clay, H M CLAY, 1954, British Journal of Medical Psychology.

The older worker and his job

H. M. Clay, Hilary M. Clay, 1960 .

The relationship between time, accuracy and age on similar tasks of varying complexity.

H. M. Clay, H M CLAY, 1957, Gerontologia.