"thornley, g c. "
scientific english practice: / g.c. thornley - 1 ed. - uk : longman 1969. - "vii, 150p.; 19 cm."
582 52181 5
Q209 / .T5 1964
scientific english practice: / g.c. thornley - 1 ed. - uk : longman 1969. - "vii, 150p.; 19 cm."
582 52181 5
Q209 / .T5 1964