I copied the Spanish lyrics from the site, admittedly with errors (a bad day!), but Monique has noted errors that were in the text I copied from the website.

Donde was not supplied with question marks; Monique makes the correction. Accents on mí and iría were lacking in the text.

The song seemingly was introduced by George Baker and his group, The G. B> Baker Selection; the lyrics posted online all are a mixture of English and Spanish.

I have since found the lyrics with mostly(?) correct accents and versification at http://www.lyricsmania.com/la_paloma_lyrics_julio_iglesias.html

Here are the first and last lines of the four verses-

Verse 1- Una canció me recuerda....
Dejó como compañera.

Verse 2- Una paloma blanca me canta....
Y cuando salgo a verla, vuela a su canta.

Verse 3- ¿Donde va que mi voz.....
Si junto a mi no está

Verse 4- Si quisiera volver....
Para querería más.