Progress and problems in the selection of stratotypes for the bases of series in the Ordovician System of the historical type area in the UK

MLA

Barnes, C. R., et al. Progress and Problems in the Selection of Stratotypes for the Bases of Series in the Ordovician System of the Historical Type Area in the UK. 1991. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsoai&AN=edsoai.ocn921255117&authtype=sso&custid=ns315887.

APA

Barnes, C. R., Williams, S. H., Fortey, R. A., Bassett, M. G., Harper, D. A. T., Hughes, R. A., Ingham, J. K., Molyneux, S. G., Owen, A. W., Owens, R. M., Rushton, A. W. A., & Sheldon, P. R. (1991). Progress and problems in the selection of stratotypes for the bases of series in the Ordovician System of the historical type area in the UK.

Chicago

Barnes, C.R., S.H. Williams, R.A. Fortey, M.G. Bassett, D.A.T. Harper, R.A. Hughes, J.K. Ingham, et al. 1991. “Progress and Problems in the Selection of Stratotypes for the Bases of Series in the Ordovician System of the Historical Type Area in the UK.” http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsoai&AN=edsoai.ocn921255117&authtype=sso&custid=ns315887.