APA
Battersby A., Villarreal O., Lethaby C. & Rodriguez M. S. (1998). Polimodal english : student's book 1 / Alan Battersby ...[et al.]. Oxford: Macmillan Heinemann ELT.
Chicago
Battersby Alan, Villarreal Omar, Lethaby Carol and Rodriguez María Sara. 1998. Polimodal english : student's book 1 / Alan Battersby ...[et al.]. Oxford: Macmillan Heinemann ELT.
Harvard
Battersby A., Villarreal O., Lethaby C. and Rodriguez M. S. (1998). Polimodal english : student's book 1 / Alan Battersby ...[et al.]. Oxford: Macmillan Heinemann ELT.
MLA
Battersby Alan, Villarreal Omar, Lethaby Carol and Rodriguez María Sara. Polimodal english : student's book 1 / Alan Battersby ...[et al.]. Oxford: Macmillan Heinemann ELT. 1998.