著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
"Pratten, C. F. (Clifford Frederick)",Labour productivity differentials within international companies,,Cambridge University Press,1976,Occasional papers,,052129102X,,https://cir.nii.ac.jp/crid/1130000797249151872