Here is a New Old Stock Haynes Owners Workshop Manual still in its wrapping for 

Datsun Bluebird 1972-4/1980

160B Mk1 & Mk2 1595cc Saloon

180B Mk1 & Mk2 1770cc Saloon, Coupe SSS & Estate

it covers 3, 4 & 5 speed Manual & 3 speed Automatic models.