"kerrod, robin n. "
purnell`s concise encyclopaediaof science: / robin.n. kerrod - ed. - london : purnell 1975. - ", 256p.; 30 cm."
361 02127 5
science- encyclopaedia
Q123 / .K47 1974
purnell`s concise encyclopaediaof science: / robin.n. kerrod - ed. - london : purnell 1975. - ", 256p.; 30 cm."
361 02127 5
science- encyclopaedia
Q123 / .K47 1974