Cita APA (7th ed.)

Hudson, R. (1978). English complex sentences: An introduction to systemic grammar. North- Holland.

Cita Chicago (17th ed.)

Hudson, R.A. English Complex Sentences: An Introduction to Systemic Grammar. NewYork: North- Holland, 1978.

Cita MLA (9th ed.)

Hudson, R.A. English Complex Sentences: An Introduction to Systemic Grammar. North- Holland, 1978.