Colin Mortimer

title	media type	ISBN-13	year of publication
Clusters	Paperback	978-0-521-21625-8	1977
Clusters Cassette	Audio Cassette	978-0-521-21676-0	1979
Contractions	Paperback	978-0-521-21533-6	1977
Contractions	Audio Cassette	978-0-521-21534-3	1977
Dramatic Monologues for Listening Comprehension: Resource Material for Listening and Fluency Practice	Paperback	978-0-521-22923-4	1980
Dramatic Monologues for Listening Comprehension: Resource Material for Listening and Fluency Practice: Cassette Set	Audio Cassette	978-0-521-22934-0	1980
Elements of Pronunciation Audio CDs : Intensive Practice for Intermediate and More Advanced Students	Audio CD	978-0-521-17101-4	2011
Elements of Pronunciation Cassettes : Intensive Practice for Intermediate and More Advanced Students: Cassette Set	Audio Cassette	978-0-521-26334-4	1985
Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students	Paperback	978-0-521-26938-4	1985
Stress Time	Audio Cassette	978-0-521-21144-4	1976
Stress Time	Paperback	978-0-521-21147-5	1976
Stress Time Cassette 1	Audio Cassette	978-0-521-21142-0
Stress Time Cassette 2	"	978-0-521-21143-7
Weak Forms	Paperback	978-0-521-21627-2	1978
Weak Forms Cassette	Audio Cassette	978-0-521-21760-6	1979