Abstract
References
1.
Ballard
C F
Bond
E K
. (1960 ) Speech Path. Ther . 3 , 55 .
2.
Ballard
C F
Gwynne-Evans
E
. (1948 ) Dent. Rec.
68 , 1 , 5 .
3.
Berry
D C
Mahood
M
. (1966 ) Brit. dent. J . 120 , 179 .
4.
Brosnahan
L F
. (1961 ) The Sounds of Language . Cambridge.
5.
Darlington
C D
. (1947 ) Heredity
1 , 269 .
6.
Fawcus
R
. (1966 ) Dent. Practit . 17 , 70 .
7.
Fletcher
S G
Casteel
R L
Bradley
D P
. (1961 ) J. Speech Dis.
26 , 201 .
8.
Luchsinger
R
Arnold
G E
. (1965 ) Voice, Speech, Language . Belmont, Calif.
9.
Rix
R E
. (1946 ) Dent. Rec.
66 , 103 .
10.
Tulley
W J
. (1964 ) Dent. Practit . 15 , 27 .
11.
Van Thal
J
. (1954 ) Speech
18 , 1 .