301
by Spens, William
Published 1844
J. Smith and Son

302
Published 2018
OECD Publishing

303
by Keeley, Brian
Published 2012
OECD Publishing

304
Published 2014
Corporación de Investigación, Estudio y Desarrollo de la Seguridad Social 

306
Published 2017
OECD Publishing

308
Published 2013
OECD/Korea Policy Centre

309
Published 2017
OECD Publishing

310
Published 2017
OECD Publishing

311
Published 2013
OECD Publishing

312
Published 2015
OECD Publishing

316
by Linné, Carl von
Published 1759
Printed, and sold by R. and J. Dodsley, S. Baker, and M. Cooper

318
Published 1845
[J. Walmsley]

320
Published 1843
W. Strange