[racket] Help generating PDF documents with Scribble

Thank you for the answers below.
I have four follow-up questions to the answers below:

1. it appears to me that scribble/base does not support a section* command.  
I found on github a file named "unnumbered.rkt", which looks it defines a section* command.
Is this what is meant by 
 "[*] It is possible that the supported unnumbered style is only in the git head of scribble."
in answer to question 1 below?

2. Where/how can I set the option to use number-style in the bibliography?
I assumed it was an option in (define-cite....), but I cannot figure out how
to specify it correctly.


On Mar 12, 2013, at 10:18 AM, George Rudolph wrote:

> 1.      Is there a way to specify an Abstract in Scribble with the default base article document type?

Like in latex, just use an unnumbered[*] section labeled "Abstract". 


> 2.      Is there example code for constructing a bibliography with entries that I can use as a model?

See end of message for a sample library. 


> 3.      I have also tried using the sigplan document type, but it is generating two-column format even though
> I have specified the one-column attribute, and one-column is specified 
> in the LaTex that Scribble generates as well. Is there a bug a in the underlying LaTex definition for the sigplan document class?

This is a bug in the underlying sigplan style. I have to fix this over and over again myself. 

[*] It is possible that the supported unnumbered style is only in the git head of scribble.