Self-help with illustrations of conduct and perseverance.

Mode of access: Internet.

Preparation, maintenance, and application of standards of radioactivity /

Mode of access: Internet.

Classified list of educational periodicals : prepared by the Committee on standards of the Educational press association of America for the Department of superintendence of the National education association.

"A revision of the list pub. ... in the 5th Year-book of the Educational press association of America, April, 1929."

The method of law: an essay on the statement and arrangement of the legal standard of conduct.

Mode of access: Internet.

Preparation, maintenance, and application of standards of radioactivity /

See errata sheet at end of item.

Calibration of line standards of length and measuring tapes at the National Bureau of Standards.

Mode of access: Internet.

The Lake Champlain drainage basin : recommended classifications and assignments of standards of quality and purity for designated waters of New York State /

Mode of access: Internet.

Drainage basin survey report, Housatonic River drainage basin. Recommended classifications and assignment of standards of quality and purity for designated waters of New York State.

Mode of access: Internet.

Classifications and standards of quality and purity for fresh surface waters of the Finger Lakes drainage basin, assigned and adopted by New York State Water Pollution Control Board pursuant to Article 12, Public health law.

Cover title: The Finger Lakes drainage basin: official classifications.