AUTHOR
Merrill, Elmer Drew 1876-
6
Brown, William Henry 1884-1939
4
Brown, William Henry 1884-
2
Brown, William Henry ed. 1884-1939
1
Burkholder, Seddie Laura
1
Dickerson, Roy Ernest 1877-
1
Diguangco, Jose
1
Fischer, Arthur Frederick
1
Quisumbing, Eduardo Arguelles
1
Robinson, Charles Budd 1871-1913
1
University of the Philippines. Science Education Center
1
Vidal y Soler, Sebastian 1889
1
West, Augustus Price 1878-
1