Gengo no kakutoku katei ni tsuite no hattatsu shinrigakuteki kenkyū
Subtitle: gengo kakutoku no jōken, hattatsu dankai no kijun no bunseki to hyōjunka
By: kenkyū (gurūpu) daihyōsha, Amano Kiyoshi
Contributors: Kokuritsu Kyōiku Kenkyūjo (Japan)
Publisher: Kokuritsu Kyōiku Kenkyūjo
Published: 1985
Place of publication: Tōkyō
Language: jpn
Number of pages: 258
Notes: Cover title.

Abstracts in English.

Includes bibliographical references.