It remains the most authoritative reference text.

It has become a classic reference text for teachers of acting, as well as for educators in other fields.

First released in 1984, the book has been described as the most comprehensive scientific reference text in the field of pain medicine.

The metric modifies simple precision since machine translation systems have been known to generate more words than are in a reference text.

According to a standard reference text, the widespread genus contains 86 species.