Frequency of Colour Vision Defects Among Zulus in NatalPickford, R. W.; Pickford, Ruth · Journal of Biosocial Science · 1981

Bishnupur achromats and their relatives (An exploratory study with six colour vision tests)Bose, J.; Pickford, R. W.; Pickford, Ruth; Joardar, B. S.; Nag, P. K.; Ray, G. G.; Sen, R. N. · Ophthalmic Genetics · 1984

Short NoticesN. E. Eliason, K. R. Brooks, Randolph Quirk, S. S. Hussey, S. C. Roberts, J. M. S. Tompkins, J. Orr, C. E. Pickford, J. R. Wilkie, A. Gillies, E. M. Butler, J. W. McFarlane and L. H. C. Thomas · The Modern Language Review · 1953

Miocene fossil cercopithecoids from KenyaBrenda R. Benefit; Martin Pickford · 1986

Relation between Dissonance and ContextGARDNER, P. A. D.; PICKFORD, R. W. · Nature · 1943

Relation between Dissonance and ContextPICKFORD, R. W. · Nature · 1943

Relation between Dissonance and ContextPICKFORD, R. W. · Nature · 1944

Consience and SocietyPICKFORD, R. W. · Nature · 1944

NOTES ON AEGERIA PINI.KELLICOTT, D. S. · The Canadian Entomologist · 1881

SOME NEW CANADIAN SCATOPHAGIDAR (DIPTERA)CURRAN, C. HOWARD · The Canadian Entomologist · 1927

NEW SPECIES OF SCATOPHAGIDAE (DIPTERA)CURRAN, C. H. · The Canadian Entomologist · 1929

TINEINA.CHAMBERS, V. T. · The Canadian Entomologist · 1877

SOME NEW SPIDERS.BANKS, NATHAN · The Canadian Entomologist · 1898

LONG LIFE CYCLES IN INSECTSDanks, H.V. · The Canadian Entomologist · 1992

INSTAR DIFFERENTIATION IN LARVAL CHIRONOMIDAE (DIPTERA)McCauley, Victor J. E. · The Canadian Entomologist · 1974

GALL GNATS OR CECIDOMYIIDÆ.The Canadian Entomologist · 1907