Gaya APA

philippines, D, O, E, A, C, O, T. (1978). living things and their environment:teacher's manual . phillipines: departmen of education and culture,republic of the philippines.

Gaya MLA

philippines, Departmen, Of, Education, And, Culture,republic, Of, The. "living things and their environment:teacher's manual". phillipines: departmen of education and culture,republic of the philippines, 1978. Text.