The study appeared last month in the online journal PLoS One, from the Public Library of Science.

VOA: special.2009.08.03

Then do you study for exams in the library?

那么你在图书馆准备考试吗？

是考试期间 - SpeakingMax英语口语达人

The study appeared in the Public Library of Science journal PLoS ONE.

VOA: special.2010.04.20

The study was published in the Public Library of Science.

VOA: special.2010.01.04

The library, founded by anthropologist Melville Herskovits, is the largest separate library in the world for the study of Africa.

VOA: standard.2010.07.10