@base . "Maine" . a . a ; "0542-1012" ; . a ; "0542-1012" ; . a , , ; , , ; "Technical bulletin - Maine Agricultural Experiment Station." ; ; ; "0542-1012" ; ; "0542-1012" ; ; "0542-1012" ; "Technical bulletin - Maine Agricultural Experiment Station." , "Technical bulletin - Maine Agricultural Experiment Station (1962)" ; . a ; . a ; ; "20190227141500.0"^^ ; ; . . a , ; "Technical bulletin - Maine Agricultural Experiment Station (1962)" .