For those who want to read the original scripts of "N.G. Evangelion" TV series in Japanese, the original scripts in Japanese were published from FujimiShobo publishing. Try to get the books below.

EVANGELION ORIGINAL I ISBN4-8291-7321-1 C0076 P980E (#1 - #9)
EVANGELION ORIGINAL II ISBN4-8291-7322-X C0076 P980E (#10- #18)
EVANGELION ORIGINAL III ISBN4-8291-7323-8 C0076 P980E (#19- #26)

Each line of speech in these books does not always the same as that filmed, but those different from the filmed version are indicated in footnotes.

Neon Genesis Evangelion