Unaware of books, but this PDF may help. Click the 'hamburger' menu at the top-right and Find In Page.
As for the barking... during the rest of the pan there's undoubtedly background noise (room tone).
First, save the project.
Right-click on the audio track and UNLINK FROM VIDEO. Now Lock the video track, using the lock icon at the left. If it's missing, right-click and LOCK TRACK.
Position the scrubber (red line) at the start of the bark. Then click the chevron to the right of the SPLIT button and click on AUDIO TRACKS|SPLIT AUDIO TRACK 1. Do the same for the end of the bark. You have now isolated the bark as a clip. To make it easy, shoot for an even number for this newly defined clip, such as three seconds, make note of it. Hovering the mouse pointer over the clip displays a pop up that lists the length.
Now delete the bark clip by selecting it and pressing the <del> key, which will leave a gap.
In another area of the pan, when the dog wasn't barking, use the same procedure to split out a segment that is slightly longer than the deleted dog bark clip.
Select (highlight) this clip, and press <ctrl-C> to copy it. Or right-click|COPY.
Using the ||< and > || buttons under the preview window, move the scrubber to the leading edge of the gap where the dog bark was.
Right-click in the gap area and PASTE (overwrite).
That should fill the gap with the clip that was copied, substituting room tone for the bark.
If you make a mistake, press <ctrl-Z> to go back, step-by-step.