Text ( visual ) : unmediated American guestworkers : Jamaicans and Mexicans in the U.S. labor market / by David Griffith. -- : paper. -- University Park, Pa. : Pennsylvania State University Press , c2006. -- xv, 234 p. ; 24 cm. -- (Rural studies series). -- Includes bibliographical references and index. -- ISBN 0271029498 ; 9780271031880 ; (BA80110003) ; https://ci.nii.ac.jp/ncid/BA80110003 Author Heading(s): Griffith, David Craig. -- Classification(s): LCC : HD8081.M6 ; DC22 : 331.6/272073. -- Subject Heading(s): LCSH : Alien labor, Mexican -- United States -- History ; LCSH : Alien labor, Jamaican -- United States -- History ; LCSH : Mexican Americans -- Employment -- History ; LCSH : Jamaican Americans -- Employment -- History ; LCSH : Temporary employment -- United States -- History