Course and curriculum improvement projects mathematics, science, social sciences.

গ্রন্থ-পঞ্জীর বিবরন
সংস্থা লেখক:	United States. National Science Foundation
বিন্যাস:	গ্রন্থ
ভাষা:	English
প্রকাশিত:	[Washington For sale by the Superintendent of Documents US. Govt. Print. Off, 197n].
বিষয়গুলি:	Science > Study and teaching > Bibl. > United States. Social science > Study and teaching > Bibl. > United States.