On Language : Rhetorica, Phonologica, Syntactica

Barron's Mastering Spanish Level 1

Spanish basic course

Workbook in syntactic theory and analysis (Prentice-Hall foundations of modern linguistics series)

Linguistic change and generative theory

Spanish Sentences Vol. 2

Spanish Sentences Vol. 1

English Words

Foreign Service Institute Spanish Basic Course Units 16 - 30

FSI Spanish Basic Course

Foreign Service Institute Spanish Basic Course Units 1 - 15