"pidgeon, douglas . "
An introduction to educational measurement: / Douglas.. Pidgeon - 1 ed. - usa : routledge & kegan paul 1968. - "viii, 160p.; 18 cm."
0-7100-6246-x
LB3051 / .P57 1968
An introduction to educational measurement: / Douglas.. Pidgeon - 1 ed. - usa : routledge & kegan paul 1968. - "viii, 160p.; 18 cm."
0-7100-6246-x
LB3051 / .P57 1968