English for proficiency /
Spencer, Duncan Hugh.
English for proficiency / D.H. Spencer. - London : Oxford University Press, 1963. - 176 p. ;
Previous ed.: 1963.
019432155X (pbk) :
English language--Textbooks for foreign speakers.
372.6521 Sp334 / En
English for proficiency / D.H. Spencer. - London : Oxford University Press, 1963. - 176 p. ;
Previous ed.: 1963.
019432155X (pbk) :
English language--Textbooks for foreign speakers.
372.6521 Sp334 / En