Kwahak kisul palchŏn kwa kyŏngje
By: [chipp'il Chŏn Chŏng-hŭi]
Edition: Che 2-p'an
Series: Chosŏn sahoe kwahak haksulchip -- 106. -- Kyŏngjehak p'yŏn
Publisher: Sahoe Kwahak Ch'ulp'ansa
Published: 2010
Place of publication: [P'yŏngyang]
Language: kor
Number of pages: 341
ISBN-13: 9789946276199
Subjects: Science; Technological innovations