Study guide for films on essential elements of interviewing : a series of six films /

Mode of access: Internet.

City planning; a series of papers presenting the essential elements of a city plan.

Mode of access: Internet.

Essential elements and soil amendments for plants : sources and use for agriculture /

Mode of access: Internet.

A compendious grammar of the primitive English or Anglo-Saxon language : a knowledge of which is essential to every modern English grammarian who would fully understand the true origin and idiom of his own language : being chiefly a selection of what is most valuable and practical in The elements of the Anglo-Saxon grammar : with some additional observations /

An extract of the author's 1823 grammar.

Elements of nuclear physics /

"To incorporate recent findings ... since the Italan text [Il nucleo atomico] was written, essential modifications have been introduced in the present edition."--Pref.