Query of individual trade item prices

[Emorgaly.1430]

moin 

is there a possibility to read only the trade items offer or sale prices of selected items for google sheets.

e.g. from 19721,67832,19685,19701.
I don't care if I have to make one query with all 4 items or four queries.

Currently my only way to query TP prices is:
=importdata("https://api.datawars2.ie/gw2/v1/items/g_csv")
And this is unpratic for several reasons.
Firstly, some items and materials are missing from the query, and secondly, it makes my tables unnecessarily slow to query all these items when I only need 4.

I have only 2 weeks ago started with the API and no previous knowledge in programming, so see it to me.