R. S. Illingworth has written:
'The normal child'
'The development of the infant and young child'
Jeanne M. Illingworth has written: 'Status of waterplantain buttercup in British Columbia' -- subject(s): Ranunculus alismifolius
Ronald Stanley Illingworth has written: 'Common Symptoms of Disease in Children' -- subject(s): Symptomatology, Children, Diseases
R. S. Weiss has written: 'Loneliness'
R. S. Young has written: 'Cobalt'
S. R. Mintslov has written: 'Zakat'
R. S. R. Parker has written: 'Adhesion and adhesives' -- subject(s): Adhesives
R. S. Woodroofe has written: 'Nature of the Vale'
R. S. Lazarus has written: 'Personality and adjustment'
R S. Drago has written: 'Acids and bases'
S. R. Crockett has written: 'The Black Douglas'
R. S. Karunaratne has written: 'Vignettes on life'
R. S. Duddle has written: 'The craft of the metalworker'