Okubo, Y. (1997). Bibliometric indicators and analysis of research systems: Methods and examples. OECD.
Dyfyniad Arddull ChicagoOkubo, Yoshiko. Bibliometric Indicators and Analysis of Research Systems: Methods and Examples. Paris: OECD, 1997.
Dyfyniad MLAOkubo, Yoshiko. Bibliometric Indicators and Analysis of Research Systems: Methods and Examples. OECD, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.