by Trybus, R J, Karchmer, M A
Published in American annals of the deaf (Washington, D.C. 1886) (01.04.1977)

by Trybus, R J
Published in American annals of the deaf (Washington, D.C. 1886) (01.11.1987)

by Rawlings, B W, Trybus, R J
Published in American annals of the deaf (Washington, D.C. 1886) (01.04.1978)

by Trybus, R J, Karchmer, M A, Kerstetter, P P, Hicks, W
Published in American annals of the deaf (Washington, D.C. 1886) (01.11.1980)

by Rawlings, B W, Trybus, R J
Published in American annals of the deaf (Washington, D.C. 1886) (01.12.1976)

by Murphy, N J, Trybus, R J
Published in American annals of the deaf (Washington, D.C. 1886) (01.04.1975)

by Trybus, R J, Lacks, P B
Published in Rehabilitation literature (01.09.1972)