Simplify the following text for a Grade 11 native English-speaking person.
Original: The complete and definitive edition , edited and transcribed by Robert Latham and William Matthews , was published by Bell & Hyman , London , and the University of California Press , Berkeley , in nine volumes , along with separate Companion and Index volumes , over the years 1970 â `` 1983 .
Simplified: The complete and definitive edition of Pepys 's diary by Robert Latham and William Matthews was published by Bell & Hyman , London , in 1970 â `` 1983 .