(1978). Collins gem spanish-english, english-spanish dictionary. Collins Clear-Type Press.
Citazione stile Chigago Style (17a edizione)Collins Gem Spanish-english, English-spanish Dictionary. Great Britain: Collins Clear-Type Press, 1978.
Citatione MLA (9a ed.)Collins Gem Spanish-english, English-spanish Dictionary. Collins Clear-Type Press, 1978.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.