 | 1977 - 564 страници
Includes "Official program of the...meeting of the Pennsylvania State Educational Association (some times separately paged). | |
 | 1971 - 462 страници
Includes "Official program of the...meeting of the Pennsylvania State Educational Association (some times separately paged). | |
 | 1971 - 734 страници
Includes "Official program of the...meeting of the Pennsylvania State Educational Association (sometimes separately paged). | |
 | 1969 - 640 страници
Includes "Official program of the...meeting of the Pennsylvania State Educational Association (some times separately paged). | |
 | 1968 - 610 страници
Includes "Official program of the...meeting of the Pennsylvania State Educational Association (some times separately paged). | |
 | 1967 - 604 страници
Includes "Official program of the...meeting of the Pennsylvania State Educational Association (some times separately paged). | |
 | 1965 - 1004 страници
Includes "Official program of the...meeting of the Pennsylvania State Educational Association (some times separately paged). | |
 | 1964 - 482 страници
Includes "Official program of the...meeting of the Pennsylvania State Educational Association (some times separately paged). | |
 | 1963 - 504 страници
Includes "Official program of the...meeting of the Pennsylvania State Educational Association (some times separately paged). | |
 | 1962 - 490 страници
Includes "Official program of the...meeting of the Pennsylvania State Educational Association (some times separately paged). | |
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