ISBN-10: 0-563-38974-5 / 0563389745
ISBN-13: 978-0-563-38974-3 / 9780563389743Manufactured in Great BritainFirst broadcast 8 March - 12 April 1978Running time: 2 hours 55 minutesPreviously released in a CD box set with The Secondary Phase
Barcode *****( )***** 5011755149925*****