Human factor problems of operating helicopters at sea.

od Steele-Perkins, A. P.
Izdano 1976

Carriage of Neisseria meningitidis: investigations in a military establishment.

od Pether, J. V., Lightfoot, N. F., Scott, R. J., Morgan, J., Steele-Perkins, A. P., Sheard, S. C.
Izdano 1988