G S Hewson

Determination of program protection factors for half-mask respirators used at a mineral sands separation plant.

G S Hewson, M I Ralph, 1992, American Industrial Hygiene Association journal.

An evaluation of radiation and dust hazards at a mineral sand processing plant.

G S Hewson, 1992, Health physics.

Radiation research priorities in the mineral sands industry

G S Hewson, B M Hartley, B. M. Hartley, 1990 .